It's Brian Eno day! Oblique Strategies is a deck of cards created by ambient music pioneer Brian Eno and artist Peter Schmidt, and first published in 1975. Designed to help artists of all types work freely and creatively, each card contains a phrase or cryptic remark that can be used to break a deadlock. The cards help you find a way around a problem by coming at it from a different angle. This app, available here, includes all five editions of the cards. We love the thought-provoking yet open-ended phrases, which give you just enough to stimulate a new way of thinking.