The dollar store looks great on the surface, right? Or maybe it just looks like a load of junk to you. But it's really a mixed bunch. So, to save you a few dollars....
Earbuds
Earbuds for just a dollar. Even at Walmart they don't seem to be less than $5. But the earbuds, if functional when you first get them, don't seem to last more than a day before they break. Broken earbuds don't deserve a dollar.
Notebooks
Dollar Tree has these in different designs, and while the Mead version has a plastic (more durable) cover, I think the dollar store has a better deal.
The Legend of Sigurd and Gudrun & other books
Okay, so this is one of the rarer finds at the dollar store, but I have seen it more than once. There are a few other books I have found cheaper there. I like the logic puzzles. If you like word searches there are a million there. Coloring books are also cheap.
Toothbrushes
6 for a dollar. Even at Walmart they are over a dollar for one. Do the math.
Hairbrushes
The dollar store hairbrushes bristles fall out and break. The expensive ones break eventually too but they generally last a lot longer.