Gillian Flynn said this quote

I prepared to get out of bed, tossing the covers aside, the sheets dank-smelling, gray from my body. I wondered how long it had been since I'd changed them. And then I wondered how often you were supposed to change them. These were the kinds of things you didn't learn. I changed bedclothes after sex, now, finally, and that I only learned a few years ago from a movie on TV: Glenn Close, some thriller, and she'd just had sex and is changing the sheets and I can't remember the rest, because all I was thinking was: Oh, I guess people change sheets after they have sex. It made sense, but I'd never thought of it. I was raised feral, and I mostly stayed that way.