$1 Old Navy flip-flops, May 22.

You can never have too many flip-flops during the summer... they're handy to stick in your car, keep in your suitcase, tuck in your beach bag, and anywhere else that might lead to outdoorsy fun. Stock up at Old Navy tomorrow, May 22, when flip-flops (normally $3.50) will be just $1.

I have a couple of pairs myself from a similar discount last year, and they're, you know, decent. They're not the most ergonomic things I've ever worn, but they'll get you to the pool and back, and for $1, that's all that matters.