How often do your remove the camper from the truck?

The width of the camper in relation to the tailgate opening is one issue for some of us, regardless of whether the camper is pop up or hardsided. I have about 1/4" clearance between the rear opening and the left side bump out for the bathroom. Under the best of circumstances I need to load very slowly and very carefully. Other campers have several inches of clearance and loading is quick and easy.