Hi everyone! First time poster! We've been RV-ing for a little over a year now (5th wheel). I would like to clean my awning and don't know what to use. We have not been able to because we can't open it in our driveway & it's only now starting to get lines of mildew on the underside. This weekend I'll be camping and thought I would spray it with something once I set up, before I put out my patio furniture. Someone told me Windex, another told me a light bleach & water mixture - can you all suggest something easy that I can do in the campground?