Your kid is NOT a baby anymore when he can dress himself! This is the first time I've seen him even attempt this, and I got it on video! (I stayed behind him so he wouldn't see me and stop what he was doing.)
I don't know what goes through his mind sometimes. Today, while we were playing Rock Band together (I was on the guitar, and he switches among bass, singing, and drums mid-song) he decided that the Rock Band bass pedal wasn't working, so he needed to bring over the bass pedal from his real drum set. I don't think it worked any better, especially since he can't reach either of them!