You might be working out your core and not even know it! Turns out that any time you're balancing, you're engaging those muscles. So plenty of moves you're doing for other reasons come with the added benefit of strengthening your core. (Self)
If you get sunburned this weekend, you might want to try soaking in a bath of Earl Grey tea. According to experts and the internet, this may help soothe your pain. If not, at least it'll smell good!