I found an interesting Web site: ZenHabits.net, by Leo Babauta, who lives on Guam. Not all of his tips will be for everyone, and many are compiled from other sources (with attribution), but they’re all thought-provoking.
I thought one post of his had some especially-valuable tips: "How to Actually Execute Your To-Do List: or, Why Writing It Down Doesn’t Actually Get It Done."