I have a big basket full of puzzles downstairs and a big stack of them upstairs. My kids love puzzles. Upstairs, when they wake up from naps early they will sit and put them together. The puzzles are really easy for them so I threw all the pieces together and make them sort and find the pieces to the puzzle they are putting together.
We later did stickers. The kids LOVE these but I don't! They get all over everything and are so hard to get off. They each have a little notebook and are able to stick their stickers wherever they want in their notebook.