Cathy,
When I had the folks at Camp-Inn install the solar hookup in the trailer, Cary included the 12 volt plug for the end of the cord. I made some brackets for the panel that fold into the panel frame when not in use. The brackets are more like legs when folded out.I store the panel in the box that it came in, especially when travelling. I use the panel on the ground, when the brackets are opened, the panel is about 45 degrees to the ground. I use the panel to charge the batteries when we are home to save a little electricity.
I hope this helps. If I knew how to put a picture in this post I could show you the brackets/legs.
Charlie