Life lessons. They’re never ending. There’s the stuff that you’d like to learn like paddle boarding, pasta rolling, conversational Spanish, and there’s the stuff that you have to learn, like web design, drywall hanging, and programming the DVR. We’re guessing sales tax falls into the latter category. Because, let’s face it, unless you’re a member of Mensa (or a masochist), sales tax is hard. And boring. But now it doesn’t have to be.