I've just made an order for a load of detailing stuff but I'm unsure on how often to use the different products. Obviously I'm going to snowfoam and wash the car every week. I've ordered some Zaino Z18 Clay and was going to use that every 6 months. I've also ordered some Dodo Need for Speed and some Dodo Purple Haze wax but I'm not sure how often you need to polish and wax a car? Every week, every month or every 6 months? Also have I missed any products out that I should have ordered?