For use on demos, customer service, and retail. The perfect pitch to get customers back into your shop is to offer them a free tune-up and cleaning a month after they purchased their product. Use Blue Goo and Xtreme Cream to clean their boards. Let them know what you are using and that it is for sale. They will also be walking around your shop buying other goods while you clean up their board. Customer service – Sales – More money in your pocket.