A beautiful minimalist thought: to use qualities of the environment as part of your design, so you can leave out parts that you would otherwise consider fundamental.

In this case, the Curt deck chair by Swiss design studio BERNHARD | BURKARD, uses leaning to do away with the minimum requirement of a third leg on a chair.

The anti-slip coated stand provides safe grip on every surface, B|B ensures us, even though it looks dangerous.

Now, if only the beach had more walls to lean against...