i'm bummed, i was so excited to hear about these flips, as i have flat feet normally requiring orthodics, so these seemed the perfect solution. well, i bought mine at a local store, baked them, wore them as suggested for 3 minutes. decided to take my daily walk in them, and came home with the worst blisters from the straps. what am i doing wrong? so so disappointed. so now, i'm gonna grin and bear it and hopefully build callouses so i can wear them around wdw next month. either that or resort to my perfect birkenstocks and pray to not get caught in the rain.