What actictraveler said!
Back when I had a VW Vanagon I did the reflectix too, got tired of figuring out where to store, didn't like the cold look of reflectix, so I bought a Westfalia curtain kit. Curtains were far superior aesthetically and in execution, storing right on the window they were meant to cover.
Fast forward to my E350 Window Van, I could't find a curtain kit to buy, didn't have a sewing machine or the talent, wanted to go camping NOW, so I have the reflectix that I don't really want.
I've been considering buying some material and learning to sew. Or, I have been idly looking at buying some RV shades like this site has.
https://www.waldoch.com/store/conver...nd-shades.html