WARNING: don’t attempt this technique when waxing your car. The purpose of waxing a board is to create a sort of grippable surface for your feet – bumps and ridges are a good thing. The water side of the board should be nice and slick. If you’re a first-timer, this vid will help:
And the wax? Sure, you can buy some. But if you’ve got a few coconuts and a pile of beeswax on hand (who doesn’t?), you might want to try making your own. Just make sure no one mistakes it for ice cream topping.