As i was getting him dressed the other day I chuckled about the fact that at this time last year? I almost NEVER put pants on him. Just a onsie and socks.
Seriously though, he is all inquisitive and likes to put things where they belong (the gate by the steps is supposed to be closed. All doors are closed. Pillows get set on the couch. Etc). or where they will fit (anything that is small enough DOES go into the ball popper, for instance.). He likes to figure out things like his shape sorter and his duplo blocks.