Cut-to-fit reflective window insulation shades

I don't recall where the discussion on the window shades is, but I ordered this from Amazon and it was easy to cut using household scissors.

https://www.amazon.com/dp/B0FDKP8VGV

It comes with some white adhesive Velcro, and I was thinking of using black Velcro to attach it to the windows, similar to the black screens for the kitchen and back windows. But I just cut it a bit oversized and was able to fit most of them in the gap between the window and the frame. I had enough for most of the windows. The kitchen window, not shown, ended up a bit short and I skipped the door window.