Where to find cheap flip-flops in December?

I know it's probably a long shot at this time of year, but is anywhere still selling cheap flip-flops? I only use them to keep my feet off the wet tiles in the gym locker room, but I went and Jimmy Buffetted myself yesterday, and can't find any that are still in stock around Sherman Oaks or Van Nuys.

I'm willing to travel further if needs be, but so far all of the ones I've found online end up being out of stock when I get to the store. Would prefer to not wait for mail order if possible. Thanks in advance!