I made a super simple, low-budget screen for our Scamp
. It's about as low-tech as you can get! It consists of a piece of screen slightly wider than the door opening, two square dowels and some velcro. I stapled the dowels across the top and bottom of the screen and then stapled a strip of velcro along the top dowel. The top dowel attaches to velcro above the door, hidden under the aluminum strip (what is that called?) over the door. The bottom dowel adds weight
to make the screen hang against the body of the Scamp
When we want to use the screen, we just unroll it and hang it up it by the velcro. We pull it aside to go through the door & it falls right back into place. It doesn't keep out 100% of the bugs, but only the really, really smart ones get in! The biggest drawback is that we have to remove it when we want to close the door. It just takes about 30 seconds to take it down & roll it back up and it fits easily on the little ledge under the window.