Actually it was yesterday but I think I last had the car waxed back in August, with two coats of CG Black over whatever was on the paint at the time. It was just a quick job to get the car through a 'ring trip. The weather has been so shit since that I haven't bothered with re-waxing the car yet for winter but I have been using Meguiar's Ultimate Quik Wax after each wash. The effects last about a week (which is perfect as the car is washed every week) but the water beading is as they claim, relentless.