Comments about Therm-a-rest Therm-a-rest Tech Blanket:

Although I haven't camped with it yet, this seems like a very nice blanket. I've snuggled up with it in my chair on a cold winter evening and it's actually much warmer than I had expected. The price here is much less than I've seen in most places.
It's very light weight and comes with the stuff sack attached. Amazingly, I was able to stuff it back into the sack easily, so it's very compact. Not only great for backpacks, but car trunks as well. This will be a much better alternative to me carrying a sleeping bag when the temps are mild.
I think this was modeled after an army blanket that I've seen. Lastly, the material is slick, so it won't pick up dirt, pet hair, etc. like fleece does.