I am a solo traveler and fairly new being a full-time RVer. Some campgrounds have back-in sites only, or the back-in sites are more in my price range. Sometimes there is no spotter available to assist me in backing into a site. I want to know what techniques others have used to safely back -in. I have considered using an orange cone at the corner of the site (where a spotter might stand), and a reflective triangle or flag positioned outside of the motorhome to mark where I should start the turn out. I do not know how to attach the item to the outside of the motorhome so no water leaks start, and can be removed when driving. Any other ideas?