Allison, you know about Harrisville I'm sure. The other is The Fiber Studio in Henniker, opposite Pat's Peak. Last year they had carpet warp (2 ply woolen, a little coarse but strong and perfect for heavy socks) for $5 a pound on partial cones. They sell zephyr yarn(beautiful colors, very strong since it's half silk, 315 yards per ounce, it goes a long way) by the ounce, too.

I need a warm rug for beside my bed. Maybe strips of knitting (about a foot wide) would work. If I want some shag, I've a rug hook here somewhere that I could use to add some depth. If I throw it in the washer and let it felt a bit, it should be pretty sturdy and stable.

One thing I like about socks is that I never have to purl back. Hmmm..maybe those strips could be tubes, making a double-thick fabric.