Buy a boat and work there! You can work just like you do in an office, but the experience is so much more fun. The view is great, you can feed some ducks while you think over hard problems, and people love to visit because it's novel, fun and has a taste of freedom. You can sail off and throw an anchor somewhere and have long meetings and brainstorms. It's not as hard or expensive as it sounds.

It only works if you live near some large body of water of course...