pancake 
What is your favourite way to separate regions in large source files?
^L (GNU style)
//////////////// (MS style)
#pragma mark (Apple style)
Poll ended at .
Barnibu@pancake C# has
#region region_name
Yolo
#endregion
Which are collapsible and absolutely despised by the majority of C# developers. Most consider it a code smell, saying your code is badly organized if it needs that to be readable