Earliest Tickle memories
I think most people who have early tickle experiences (from a young age) can remember some of their first experiences as barefeet tickling. It was pure clean fun whether it was your mom stroking your foot with a single finger or the "guess what I'm writing on your foot" game. Barefoot tickling will always have a special place in my heart even though now nylon foot tickling is much more sexy in my mind.