5dollarfrenchmarket. Everything listing in their shop is (you guessed it) $5.
The thing that they have that makes me go ga-ga is vintage seam binding in various amazing colors. Seam binding is a great way to hem in a vintage style and I use it quite a bit to strengthen seams in the vintage clothes I am able to find that fit me. You'll also see it pop up on the hair flowers in my shop, Tart Deco.
5dollarfrenchmarket also has handmade trinkets and crafts. The shop is adorable, so be sure and visit!