Hi ladies, totally not wedding related but I know this forum has mountains of wisdom. FI and I have decided to put our condo on the market, and are looking at cleaning things up etc. Our gas fireplace class is suuuuper dirty. Anyone have a good tip on cleaning it? FMIL said turtle wax would do it... tried it tonight, and although it looks cleaner than when we began, it still has lots of foggy marks. Anyone know a good tip?