Reefs. You'll be happy with your choice. I've been a practically year-round, daily flip-flop wearer for probably 15yrs now(started in high school) and have tried Many brands, from cheapo to expensive. In a quality, lasting flop, you want something with a firmer rubber sole, a slightly raised heal, and a solidly anchored fabric band between the toe. Reefs will have all of that, a bottle opener(for most models), not be too heavy, be very comfortable, and last. I've blasted through plenty of cheapos in a month or two, tried the longer lasting heavy leather types, the slightly lighter, but expensive leather types, and Reefs are the best I've found. I'd recommend something in their $50 range. I would support what others are saying about Tevas too. I've owned a couple pairs of them. They make some totally decent flops, but not quite as nice as Reefs in my experience. Vibrams are also nice, and that's what I'll wear when it hits freezing or below if I'm going to be outside for more than a couple minutes. For taking on tour for shower use and the like, I'd go with flops. Vibrams aren't as convenient, tend to get smelly if you don't wash them regularly, and aren't generally considered as comfortable for someone not used to wearing them regularly.

MassiveD - Try Reefs. I promise they won't fall apart. I wear flops more than most people and therefore wear them out more quickly. I'd kill a pair of cheap flops in a month or less depending on how crappy they are, but Reefs will last me nearly a year(just as long as shoes that I wear daily for work) And what do you mean flip-flops are largely useless? I'm asking this genuinely, not as a smart-ass rhetorical question. As far as I see it, they're just like any other footwear minus sporting activities that require footwear firmly secured to your foot like soccer or something. I wear flip-flops daily for anything except sports activities. I bike in them as long as it's not below ~50 degrees or raining. How do they not work out for you?