I have had a blister problem at WDW every single trip since I was a young teen. I have tried alternating pairs of sneakers, wearing two pairs of socks etc etc.
This trip I was planning on buying some "Cool Max" brand socks and using Gold Bond powder.
I also was told to bring "mole skin" (small pieces of a felt-like material that you cover existing blisters with) although I have never used it before and it seems too odd to work.
Any other blister sufferers out there? Any suggestions to avoid 'em?