For those looking to keep the outside of your grill looking majestic all year round, Weber offer some fantastic cleaning products, all sold at WoWBBQ.
Top tip - don't clean your BBQ after you use it, only clean it before you use it the next time. Yes, you read that right - once you have finished with your BBQ, turn it off and leave it. Fats from your previous BBQ act as a lubricant and protect your cooking grates from things such as rust. Once you go to use the BBQ the next time, get the heat going and close the lid. Old fats will burn off and once carbonised, clean away the carbonised fats with a brush.