It's an appealing and easy enough hack that I'll plug my recent LessWrong discussion post Shop for Charity: how to earn proven charities 5% of your Amazon spending in commission. Especially now that Black Friday week has started on Amazon.
That is a neat hack - who said there's no such thing as a free lunch?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.