I read on a fashion website that people sometimes add rubber to leather soles so that they last longer and are more cushioned on the pavement. Does anyone do this? Pros? Cons? I have some gorgous new shoes - crocodile! - and I was thinking of doing this so that they'd last longer. I live in the city, so I walk a bit, but I usually prefer to wear my nice shoes to work, I just can't get into wearing sneakers with a suit. Also, anyone have a favorite type of padding/insole? I've been using footpetals and it really seems to help with some of my higher heels.