I finally broke down and bought a pair of Crocs that weren't just a cheap knock off.  They do look nicer, but if looking nice is your goal you probably aren't shopping for Crocs.  They're very comfortable.

My knock offs were slippery death traps when I walked on a wet floor but the real Crocs offer much better friction in those situations.  I expect to live longer now that I have the real ones.

I did break off the button that holds the strap on after only 3 days.  I'm a little disappointed about that but the reality is that you only need the straps if you're pushing a car or something.  They stay on very well without the straps.