It’s getting chilly again. And it feels like it means it this time.

I think it would be wise to at least get the insulation on the ceiling.
And maybe on the lower half of the side walls.

When it starts staying cold all day then I might put plastic over the windows.

I also saw some of that rubber flooring that you put together for exercise rooms or cushioning for standing jobs. Enough to do the bed of my truck is $12.00.
I think that might be good insulation for the bed of the truck. Put that down and then put the rug back down on top of it.