Clean off a shelf or clean out a drawer

Now, this could be anywhere in my room.

I have so many piles that don't even belong in here.

This shelf has card and who knows what on it.

I'll clean it off and organize it better. 

While I am up there, this is the shelf on the other wall.

I have no idea when I dusted it last, so I think I'll dust this and make sure it is organized well too.