Tips for creative thinking

I was waiting for my drink at the cafe in my local Borders when I saw a couple of design books in the tidy pile by the counter. The first one, Colour by Ambrose/Harris looks like a lovely read and was what originally caught my attention. Under it, was a book titled Great Graphics on a Budget by dixonbaxi. I wasn't as interested but thought I'd flip through it anyway and I'm glad I did. On page 28, there's a great list of tips for creative thinking that I wholeheartedly agree with:

The list of tips ends with my absolute favorite: "Forget everything you know and start again."