I know that most of you are riding gaited horses, and this may not exactly fit in with that, but I don't know of any reason why knowing more about what is happening underneath you would ever be a bad thing.
This is a clip from a recent clinic on a game I call the Hokey Pokey. It is geared as an introduction into feeling and controlling your horse's feet better. This game can be advanced to a very, very high level, but this is the most basic.
http://www.youtube.com/watch?v=IfooDLl_maM
Feeling the horse's feet
Feeling the horse's feet
Two cannibals were eating a clown. One looks up at the other and says, "Does this taste funny to you?"