I have a pile of sandals that I've bought over the years. Flat, comfy soles, real leather, intended for shopping and sightseeing on holiday, but... the edges of the straps rub the skin on my feet into blisters if I walk more than a couple of hundred yards.
I've tried putting plasters on the parts that get rubbed, but the straps rub them off and then proceed to chew up the skin.
Does anyone have any idea what I can do to stop them rubbing?