If You Can’t Have An Idea While You’re Awake, Go To Sleep

A classic piece of creative life advice from David Ogilvy:

If you can’t have an idea when you’re awake, go to sleep.

It is, after all, how he came up with the iconic Pepperidge Farm ad. But don’t take it from me – here’s Ogilvy himself telling David Letterman right around the 2 minute mark (h/t Cole Schafer)