You know what place is AWESOME? Rue 21. They have TONS of colors and styles, and they all range from $2.98 to $3.99. Sooo cuuuute! :D And if you sign up for their e-mail mailing list on the website (www.rue21.com), they'll give you a 20% off coupon!
My all-time favorite pair of flip flops came from Target. They are made of blue jean material, but the sides (what do you call that part? haha) and straps are rainbow colors! I mean, these flip flops match EVERYTHING... except pink or black. But y'know. They're really broken in, too. :D
I'm also a huge fan of platform flip flops. Greatest. Invention. Ever.