My elder brother has a '36 Plymouth and a '40 Ford that he has restored. Practically every nut and bolt in them is stainless steel, just like his custom-built car trailer. He belongs to both associated car clubs. He also patronizes Griot's Garage, and I agree that if you care about your car's or coach's finish, you should get Griot's catalogue. They sell their own name-brand products and aren't particularly cheap, but you can learn a lot just by reading the catalogue.
Brother says that even the best UV waxes break down in the sun in just a few weeks, and he has been after me since the day we bought the coach to build a carport for it; he is a perfectionist that knows his cars and finishes, and is greatly disappointed I've not covered the coach. There are several significant reasons why I haven't. So I spend many hours cleaning it and waxing it adhering to Monaco's video on the subject.
While on the road, I used to try a long pole scrub and rinse (most campgrounds will allow at least a windshield rinse) every couple of days. But after watching others in adjoining sites, I've gone to a different program. Each evening, while the wife makes dinner, I get on my collapsible ladder and clean the windshield with 20/20, Bug-Off, or similar windshield cleaner you'd put in the underhood reservoir, a bug scrubber if needed, a squirt bottle with water, and towels. Bug-Off works best to dissolve critters. Cleaning daily isn't that much of a chore if done daily. After a rinse, a squeegee in the right hands can work, but not on a long pole; to my notion it's just as easy to get on a ladder with a towel and do it right, and with less water.
Additionally, about once a week, I rinse the whole front cap to remove dry grit, wash off the bugs, perhaps dry by hand, and apply a quick-wax, like ProtectAll or sometimes Aerospace 303, that puts a UV retardant, dirt resisting coating on the cap. That alone makes the bugs rinse off with little if any scrubbing the next time, and I use little campground water to do it. A bucket of Bill's Easy Wash or The Solution would suffice if there's no hose available, but a bucket of plain water or even a pump-up spray bottle works for me to simply rinse a treated cap.
Since the cap's anti-rock film gets most of the glued-on dirt that can take hours of muscle to scrub off, and the wind and dirt impact wears off the front cap's wax faster than the rest of the coach, I've found it much easier to regularly spend a half hour coating the cap with protectant; bugs and dirt don't stick in the first place, and practically fall off on their own if they do. You can let a rinsed cap dry overnight if you like, and spray/wipe on the protectant the next day. As long as the sun hasn't baked in calcium waterspots, the protectant should help wipe any away.
Joel