Shower.
Taking showers is supposed to be good for having ideas because, according to whatever source Doyce heard it from, ios are released into the air, exciting your brain.
Neat idea, but sleeping in always works better for me...I lay in bed (I'm always the first one up) and wait for everyone else to wake up...things come to me then. Showers are for things that you forgot to do the other day, or last-minute inspirations. Sleeping in is for longer things.