Travel Trailer Cover? Good/Bad Idea?

Ditto what mitch said. My cover is nasty with tree sap, bird poop and pollen. Glad it's on the cover and not the TT. We've had some pretty high winds and there's never been a problem with the cover. No problem with wasps, scuffing, moisture retention or any of the other things folks seem to have trouble with. I suppose the type of fabric could have something to do with that.

I guess mine just happens to fit well and I guess I'm installing it properly. However, it is a real PITA to install and remove so I only do it once a year. I'd never dream of covering and uncovering every time I use the rig.