diff --git a/aegisub/libaegisub/common/option.cpp b/aegisub/libaegisub/common/option.cpp
index 17fa75608..94765e167 100644
--- a/aegisub/libaegisub/common/option.cpp
+++ b/aegisub/libaegisub/common/option.cpp
@@ -129,8 +129,7 @@ void Options::Flush() {
 				break;
 
 			case OptionValue::Type_List_String: {
-				std::vector<std::string> array_string;
-				i->second->GetListString(array_string);
+				std::vector<std::string> const& array_string(i->second->GetListString());
 
 				json::Array array;
 
@@ -145,8 +144,7 @@ void Options::Flush() {
 			break;
 
 			case OptionValue::Type_List_Int: {
-				std::vector<int64_t> array_int;
-				i->second->GetListInt(array_int);
+				std::vector<int64_t> const& array_int(i->second->GetListInt());
 
 				json::Array array;
 
@@ -160,8 +158,7 @@ void Options::Flush() {
 			break;
 
 			case OptionValue::Type_List_Double: {
-				std::vector<double> array_double;
-				i->second->GetListDouble(array_double);
+				std::vector<double> const& array_double(i->second->GetListDouble());
 
 				json::Array array;
 
@@ -175,8 +172,7 @@ void Options::Flush() {
 			break;
 
 			case OptionValue::Type_List_Colour: {
-				std::vector<Colour> array_colour;
-				i->second->GetListColour(array_colour);
+				std::vector<Colour> const& array_colour(i->second->GetListColour());
 
 				json::Array array;
 				for (std::vector<Colour>::const_iterator i_colour = array_colour.begin(); i_colour != array_colour.end(); ++i_colour) {
@@ -189,11 +185,9 @@ void Options::Flush() {
 			break;
 
 			case OptionValue::Type_List_Bool: {
-				std::vector<bool> array_bool;
+				std::vector<bool> const& array_bool(i->second->GetListBool());
 
 				json::Array array;
-
-				i->second->GetListBool(array_bool);
 				for (std::vector<bool>::const_iterator i_bool = array_bool.begin(); i_bool != array_bool.end(); ++i_bool) {
 					json::Object obj;
 					obj["bool"] = *i_bool;
diff --git a/aegisub/libaegisub/common/option_visit.cpp b/aegisub/libaegisub/common/option_visit.cpp
index b800c7a28..fc07d5e78 100644
--- a/aegisub/libaegisub/common/option_visit.cpp
+++ b/aegisub/libaegisub/common/option_visit.cpp
@@ -162,40 +162,25 @@ void ConfigVisitor::AddOptionValue(OptionValue* opt) {
 			opt_cur->SetBool(opt->GetBool());
 			break;
 
-		case OptionValue::Type_List_String: {
-			std::vector<std::string> array;
- 			opt->GetListString(array);
-			opt_cur->SetListString(array);
+		case OptionValue::Type_List_String:
+			opt_cur->SetListString(opt->GetListString());
 			break;
-		}
 
-		case OptionValue::Type_List_Int: {
-			std::vector<int64_t> array;
- 			opt->GetListInt(array);
-			opt_cur->SetListInt(array);
+		case OptionValue::Type_List_Int:
+			opt_cur->SetListInt(opt->GetListInt());
 			break;
-		}
 
-		case OptionValue::Type_List_Double: {
-			std::vector<double> array;
- 			opt->GetListDouble(array);
-			opt_cur->SetListDouble(array);
+		case OptionValue::Type_List_Double:
+			opt_cur->SetListDouble(opt->GetListDouble());
 			break;
-		}
 
-		case OptionValue::Type_List_Colour: {
-			std::vector<Colour> array;
- 			opt->GetListColour(array);
-			opt_cur->SetListColour(array);
+		case OptionValue::Type_List_Colour:
+			opt_cur->SetListColour(opt->GetListColour());
 			break;
-		}
 
-		case OptionValue::Type_List_Bool: {
-			std::vector<bool> array;
- 			opt->GetListBool(array);
-			opt_cur->SetListBool(array);
+		case OptionValue::Type_List_Bool:
+			opt_cur->SetListBool(opt->GetListBool());
 			break;
-		}
 	}
 }
 } // namespace agi
diff --git a/aegisub/libaegisub/common/path.cpp b/aegisub/libaegisub/common/path.cpp
index 1b7044d38..51f9b326b 100644
--- a/aegisub/libaegisub/common/path.cpp
+++ b/aegisub/libaegisub/common/path.cpp
@@ -78,7 +78,7 @@ void Path::Set(const char *name, const std::string &path) {
 
 
 void Path::ListGet(const char *name, std::vector<std::string> &out) {
-	opt->Get(name)->GetListString(out);
+	out = opt->Get(name)->GetListString();
 }
 
 
diff --git a/aegisub/libaegisub/include/libaegisub/option_value.h b/aegisub/libaegisub/include/libaegisub/option_value.h
index 138c517c5..8cbe6ac28 100644
--- a/aegisub/libaegisub/include/libaegisub/option_value.h
+++ b/aegisub/libaegisub/include/libaegisub/option_value.h
@@ -98,11 +98,11 @@ public:
 	virtual bool GetDefaultBool() const { throw TypeError("bool"); }
 
 
-	virtual void GetListString(std::vector<std::string> &out) const { throw ListTypeError("string"); }
-	virtual void GetListInt(std::vector<int64_t> &out) const { throw ListTypeError("int"); }
-	virtual void GetListDouble(std::vector<double> &out) const { throw ListTypeError("double"); }
-	virtual void GetListColour(std::vector<Colour> &out) const { throw ListTypeError("colour"); }
-	virtual void GetListBool(std::vector<bool> &out) const { throw ListTypeError("string"); }
+	virtual std::vector<std::string> const& GetListString() const { throw ListTypeError("string"); }
+	virtual std::vector<int64_t> const& GetListInt() const { throw ListTypeError("int"); }
+	virtual std::vector<double> const& GetListDouble() const { throw ListTypeError("double"); }
+	virtual std::vector<Colour> const& GetListColour() const { throw ListTypeError("colour"); }
+	virtual std::vector<bool> const& GetListBool() const { throw ListTypeError("string"); }
 
 	virtual void SetListString(const std::vector<std::string>& val) { throw ListTypeError("string", " set "); }
 	virtual void SetListInt(const std::vector<int64_t>& val) { throw ListTypeError("int", " set "); }
@@ -110,11 +110,11 @@ public:
 	virtual void SetListColour(const std::vector<Colour>& val) { throw ListTypeError("colour", " set "); }
 	virtual void SetListBool(const std::vector<bool>& val) { throw ListTypeError("string", " set "); }
 
-	virtual void GetDefaultListString(std::vector<std::string> &out) const { throw ListTypeError("string"); }
-	virtual void GetDefaultListInt(std::vector<int64_t> &out) const { throw ListTypeError("int"); }
-	virtual void GetDefaultListDouble(std::vector<double> &out) const { throw ListTypeError("double"); }
-	virtual void GetDefaultListColour(std::vector<Colour> &out) const { throw ListTypeError("colour"); }
-	virtual void GetDefaultListBool(std::vector<bool> &out) const { throw ListTypeError("string"); }
+	virtual std::vector<std::string> const& GetDefaultListString() const { throw ListTypeError("string"); }
+	virtual std::vector<int64_t> const& GetDefaultListInt() const { throw ListTypeError("int"); }
+	virtual std::vector<double> const& GetDefaultListDouble() const { throw ListTypeError("double"); }
+	virtual std::vector<Colour> const& GetDefaultListColour() const { throw ListTypeError("colour"); }
+	virtual std::vector<bool> const& GetDefaultListBool() const { throw ListTypeError("string"); }
 
 
 	DEFINE_SIGNAL_ADDERS(ValueChanged, Subscribe);
@@ -134,7 +134,7 @@ public:
 		OptionType GetType() const { return OptionValue::Type_##type_name; }                  \
 		std::string GetName() const { return name; }                                          \
 		void Reset() { value = value_default; NotifyChanged(); }                              \
-		bool IsDefault() const { return (value == value_default) ? 1 : 0; }                   \
+		bool IsDefault() const { return value == value_default; }                             \
 	};
 
 CONFIG_OPTIONVALUE(String, std::string)
@@ -164,13 +164,13 @@ class OptionValueList: public OptionValue {
 	public:                                                                                   \
 	virtual std::string GetString() const { return "";}                                       \
 		OptionValueList##type_name(std::string member_name): name(member_name) {}             \
-		void GetList##type_name(std::vector<type> &out) const { out = array; }                \
+		std::vector<type> const& GetList##type_name() const { return array; }                 \
 		void SetList##type_name(const std::vector<type>& val) { array = val; NotifyChanged(); } \
-		void GetDefaultList##type_name(std::vector<type> &out) const { out = array_default; } \
+		std::vector<type> const& GetDefaultList##type_name() const { return array_default; }  \
 		OptionType GetType() const { return OptionValue::Type_List_##type_name; }             \
 		std::string GetName() const { return name; }                                          \
 		void Reset() { array = array_default; NotifyChanged(); }                              \
-		bool IsDefault() const { return (array == array_default) ? 1 : 0; }                   \
+		bool IsDefault() const { return array == array_default; }                             \
 	};
 
 
diff --git a/aegisub/src/base_grid.cpp b/aegisub/src/base_grid.cpp
index 5f1c564a1..6daaac8e8 100644
--- a/aegisub/src/base_grid.cpp
+++ b/aegisub/src/base_grid.cpp
@@ -142,8 +142,7 @@ void BaseGrid::UpdateStyle() {
 	}
 
 	// Set column widths
-	std::vector<bool> column_array;
-	OPT_GET("Subtitle/Grid/Column")->GetListBool(column_array);
+	std::vector<bool> column_array(OPT_GET("Subtitle/Grid/Column")->GetListBool());
 	assert(column_array.size() == columns);
 	for (int i = 0; i < columns; ++i) showCol[i] = column_array[i];
 	SetColumnWidths();
diff --git a/aegisub/src/dialog_paste_over.cpp b/aegisub/src/dialog_paste_over.cpp
index e9c6c3a75..2b661232e 100644
--- a/aegisub/src/dialog_paste_over.cpp
+++ b/aegisub/src/dialog_paste_over.cpp
@@ -94,7 +94,7 @@ DialogPasteOver::DialogPasteOver (wxWindow *parent, std::vector<bool>& options)
 
 	// Load checked items
 	/// @todo This assumes a static set of fields.
-	OPT_GET("Tool/Paste Lines Over/Fields")->GetListBool(options);
+	options = OPT_GET("Tool/Paste Lines Over/Fields")->GetListBool();
 	for (unsigned int i=0;i<choices.Count();i++) ListBox->Check(i,options[i]);
 
 	// Top buttons