Please help me! I have really dark knees and I want to get rid of them. I don't wear shorts because its so embarrassing. I really want the be a cheerleader and the tryouts are in about a month. I really want to try out, but my knees just get in the way of that.can you please help ? I need something that will be cheap and will work really good. I've tried using limes but I haven't seen any results. Any other ways that will work fast?