I find that a lot of the techniques on here are with vibrators, or a water nozzle. Now, I've never been able to enter a store that sells vibrators, and a water nozzle just doesn't put me over the edge.
What I did find however, that a back massager, or a hand held massager, works just as well, actually, very well. I find that if you put (my massager has large ribbing on it) the ribbing right, or just near by clitoris, you're heaven high in just minutes, or less. And no hands needed!
So just for all the people who aren't able to get vibrators, these work just as well.