I masturbate several times in a day with my fingers, but at night I have the most fun because everyone is asleep and I don't have to worry about being walked in on.
I do several things. I like to use ice on my clit for a different sensation, or stick it inside of me and feel it melt. Toothpaste also has a really awesome cooling sensation. I sometimes make out and feel up and talk dirty to this doll I got when I was younger. It makes me feel so dirty. You should try it. I use a female plug-in razor (really old) and take off the sharp part and it makes an incredibly good vibrator. I like to stick two highlighters in front of me and maybe one in my ass to add to the feelings.
I also find doing stuff to my breasts, like laying ice on them or using suction from bottles & stuff makes orgasms more intense. I basically have sex with myself at night, trying a combination of these to cum. Try any or all of them. Guaranteed fun. Now I'm quite wet and have to go....