Haven't use them, but I want to make a pitch for buying the $1 bag of rags sold at Goodwill. They are off white cloths, nice size, and cheap enough to use for throw away projects like staining furniture.

My sister and I don't bother buying shop rags. We use old bath towels, you know, the worn ones with rips, stains, holes. We keep them in the basement for using to clean up water and other liquid spills, cleaning, etc. She calls hers dog towels and I call mine shop towels. I do buy paper towels for use in the kitchen.

No, I use garage sale bath towels, flannel sheets, baby blankets, etc..