I wear Spiras. They look like regular athletic shoes, but they have coils INSIDE the shoe. They are not cheap, but I can only go without them for awhile. Crocs make my hips ache at night! Anyone know if the interlocking mats (like they sell at Sears..and they come in colors for kids play areas too) work on carpet? I stand at the long arm and am limited w/o more support. Maybe its time to get my carpet replaced!