I always have a pack of some kind in front of my seat.  Daypack or fishing gear.  I step over the pack, putting downward pressure on the gunwales to keep it level, then put my butt in the seat.  My other leg follows.  I used to go a moving entry like Steve describes, back when my balance was better.  Now I just get my backside down as quickly as possible.
				
			 
	 
 
		 
 
		
 
 
		
 
 
		
 
 
		 
 
		 
 
		 I'll attach a link to the video.
  I'll attach a link to the video. 
 
		 
 
		 
 
		 
 
		