John Kitchin has another great trick: how to implement radio buttons in Org mode. The idea is to take a normal Org checklist and arrange it so that only one item can be checked at a time. In other words, a radio button.
Oddly, there's nothing like that built into Org mode but Kitchin shows how to implement it with just a few lines of Elisp. You might want to query the list programmatically and retrieve the checked item. Kitchin wrote a couple more functions to allow you to do just that.
It's a nice post and even if you don't have a need for a radio button right now, you'll learn a lot about working with Org structures. Definitely recommended.