I don't know what state you live in, but here in NY (and I know it's the same down in VA my hometown) the Dollar Tree brand stores have excellent things there. I am really not a dollar store person, but this chain of stores carries some excellent things.
Also, in Michaels, they have these really cool dollar bins that you could check out...one other place now is Target. At least at mine right near the enterance there is a section now of $1 only items. I saw some really neat things there recently geared for Preschoolers...mini stuffed kitty cats and dogs..very adorable and all $1..can't beat that!