If you're using all the fancy tools and all the hair products but your hair still won't hold a curl, Contrastano and Potempa suggest doing the retro thing and pinning them. "When you take the pins out, the curls will have even more structure and volume," Potempa says.

Using duck-bill clips like these, "just wrap the curl, pin and let it set for a few minutes," Potempa says. Contrastano suggests leaving your curls pinned until you're ready to leave the house; then, let 'em loose and spray them.