I have had achy feet for so long.  Wore tennies all the time with all kinds of arches stuffed in them.  Wanted some cute sandals.  Tried EVERY brand with no success.  Stumbled across the fit flop....now I own at least a dozen pairs!  I live in WI and I wear them all year!  I have toe socks.  I bring them along and change when I get inside if it is too snowy.  They are HEAVEN!  I also have 3 pairs of the Van Gogh clog, I like them but they are not as attractive as the sandals.  I just bought the supersneaker, I have not worn them yet.  I normally wear an 8 - 8 1/2 but wear a 7 in the sandals and an 8 in the clog.