Oblique strategies is a set of cards created by Brian Eno and Peter Schmidt used to break deadlocks in creative situations.
Each card contains a (sometimes cryptic) remark that can help you resolve a creative dilemma.
Whenever you’re stuck you draw a card and ponder how it applies to your situation. You may draw as many cards as you wish.
This website is an online version of the deck, containing many cards from the printed editions.
For more information see Oblique Strategies on Wikipedia