A while back I heard about this product called Baby Legs. Think of them as long socks minus the feet. Great for crawling around hard floors, keeping legs warm (of course!). I've seen adults use them on their arms. I like the idea of of using them on little ones, sounds like a great alternative to pants when it comes to changing diaper!
They have a contest going where you can win 20 pairs of Baby Legs, and you can get bonus entries if you link to the contest on your blog (as I'm doing now).
Go here to sign up.