I never do! And it annoys the hell out of me when someone else has had my car and left it in gear and i end up leaping forward. 
I think it depends how long you have been driving. Older generations all seem to leave the car in gear but i don't know of anyone my age who does this (Unless parking on a steep hill).
	
		
			
		
		
	
				
			I think it depends how long you have been driving. Older generations all seem to leave the car in gear but i don't know of anyone my age who does this (Unless parking on a steep hill).
 
	 
  
 
		 
 
		 
 
		
 
 
		 
 
		


 
 
		 
 
		 
 
		