You get ideas from daydreaming. You get ideas from being bored. You get ideas all the time. The only difference between writers and other people is we notice when we're doing it.
“I always used to say when I was on television that I prefer to be on stage and when on stage I prefer to do television. Typical human condition.”
“I am a better running back every time I step on the field. I try to get better each game, each summer, each season.”