Yeah, if you're a writer, these mean different things than if you're a non-writer.
At least as a writer I know not to climax too early! I drag it out all foreshadowy and stuff, get the whole character arc going before I ram it home.
I find pinching the inside of my thigh helps if I get too antsy.
Now I'm gonna sit in my closet, in my underpants, drinking beer as I stroke my Asus.
Wish me luck. I'm almost finished!