If you have a layout blind and can't afford a cover like me, white bedsheets are a pretty good idea. A white cover up suit works, but a layout is so much warmer. Another idea is if you have enough snow on the ground is to pour some water on your blind and kick snow on it. The water will make the snow stick and look natural. Now if you don't have one, I would suggest the suits. I have some white Tyvek painter suits that are available at most parts stores that sell auto paint. Cost on the cheap ones is about 10 bucks.