Elliot has recently learned some important skills, namely: unsnapping snaps, and unzipping zippers.
To wit: this morning, I got Elliot dressed in one of my favorite one-piece outfits: it snaps down the front and up both legs. He looked very cute. I went in the kitchen to eat my breakfast. A second later, Elliot came running in not wearing his outfit, but rather waving it triumphantly above his head. I'm not kidding. It was like a flag. I stood staring at him, slack-jawed, while he ran past me to the cupboard with the pots and pans, opened the cupboard, wadded his outfit/victory banner into our soup turreen, turned around, and ran out.
I'm not sure that "clothes removal and rejection" is a normal developmental milestone, but I guess that's where we're at.