I bought fitflop sandals and tried them out around the house for a day or so.  Did they 'work'?  Well, if pain is an indicator of flexing muscles and your goal is to flex muscles, then they did that.  We all want easy exercise, muscle toning and weight loss.  What concerns me about this fitflop craze is the long range effects.  People who wear pointy toed high heels for many years risk developing bunyions and/or strained tendons.  What will we find in folks who fitflop everywhere in the next 10 or 20 years?  Some have said their fitflops helped them to 'cure' heel spurs, or plantar's fasciitis.  But what problems do the rather unnatural design of the fitflop create?  So many wonderful concepts have been developed, only to find that in the long run, there are as many problems as solutions in those innovations.