Happy Bubble Bath Day! Yep it really is a real thing. (Seriously, who comes up with these bizarre "holidays"?) Anyway, January is the most depressing month of the year (or at least one of the coldest), so why not hop into the tub and soak for a bit? And because it is Bubble Bath Day, you should have the nicest possible soap on hand to celebrate. Here are 15 options to get you nice and sudsy.