* Prices may differ from that shown
I have wide feet, and therefore not usually a fan of heels or designer shoes of any type. I usually buy from new Look wide fitting shoes but even then, they are always just a bit too big for me. My shoe size is somewhere between a 4 (too tight) and 5 (too big). I first found "Party feet" about five years ago, and they have proved invaluable for me.
Party feet are thin, clear gel cushions which fit in the front of your shoe. For me, they lift and push my feet back a bit so that my shoes fit - or at least stay on my feet - better.
The cushions have a wavy ridge across them, but they are soft, and they add a touch of comfort to the shoe as well, somehow retaining a feel of cool when feet start to heat up and become uncomfortable.
They come in one size, approx 13cm x 8cm, and whilst not sticky as such, they do come with a peel off film and somehow adhere to the soles of the shoes. They don't tend to slip around. They are shaped to the rough shape of the front of a shoe, and it is easy to reposition them when they are in place to get the most comfortable, suitable fit.
A pair of party feet cost £3.99, and are a very worthwhile investment if you either have odd shaped feet like me, or just want shoes to feel a bit more snug and comfortable.