Skinning squirrels is a heck of a lot easier than skinning a moose. I'll find the full video (put out by the Virginia DF&G) and see if I can post a link to it.
This isn't the link I was thinking about but it shows the same technique. Cut through the tail bone hard against the back, extend the cut just a bit, grab onto the back legs, step on the tail, and stand up. You end up with a skinned squirrel in about 30 seconds.
http://www.youtube.com/watch?v=66AVwthXgMA