I Keep a notebook of “free radical” clever phrases that I can flip through from time to time if I get stuck. It serves a few purposes: on the one hand I’ve recorded them so my terror of forgetting something so “brilliant” won’t tempt me to force that bit into some poor unrelated character’s mouth, on the other those bits of random inspiration can help trigger other ideas. Then again sometimes it is just funny to sit and read them and wonder “What on earth was I thinking!?”