What types of jobs are stress-free, in your opinion?

I used to work in different kinds of sales like selling properties, medical representative work, telemarketing, and other stuff. I find them really stressful, so when I learned to work-from-home doing things like teaching English to Koreans online, teaching chess online, and other stuffs like Investments online, Affiliate Marketing and online tasks like PTC's and of course Mylot, I really found my stress-level has been reduced a lot! In my opinion, working-at-home has been one of the most stress-free jobs I know of. Do you know other types of jobs or work out there that you are doing yourself or you simply know of that is as stress-free or even less stressful than working-at-home using your computer?