Ok, I'm sure lots of people have heard some of these things, but I'll put them down just 'cause these are the ones that work for me. Humping pillows or sides of beds never worked for me. I don't know why.
First off, if you don't shave, you should try it at least once. It always makes me really wet as I'm shaving. It makes your lips really soft and it feels good just to rub them for a while afterward.
Also, I've been experimenting with putting things in. I've used a ring holder that worked ok, but it was small, so it didn't really do anything. Lately, I've used a hot dog. Just a regular one. And don't worry, I put a condom over it. I don't need hot dog juice in me. :)
I've used my cell phone as a vibrator. I thought it would work better than it actually did.
But right now, my favorite is the faucet in the tub. It feels so good on my clit! I bet I could just lie there for hours. It always gets me to orgasm.
But if you just use your fingers, here's my technique. Put your pinky and thumb on the outside of your pussy lips and your index finger and middle finger on each side of your clit. Don't put your whole fingers down, just have your tips on either side. Just put your ring finger next to your middle finger. Go in circles clockwise and start off soft, then go harder and faster until you find the perfect spot and keep going on it. I did this last night and I had an orgasm quickly.
Hopefully I helped. If I didn't, I'm sorry. But all of these methods have helped me. :)