Lately, I've been knitting washcloths from tarn during church. It's a small project and I don't need a pattern. It's a rectangle with a garter stitch edge. The tarn basket didn't use up all my tarn, so when I saw this idea here, I jumped on it.
They are very thick, 100% cotton, and somewhat stiff. I'm hoping they'll be scratchy enough to be scrubbers for the dishes. We're on our last plastic scrubber and after that, I think we'll be done with plastic scrubbers if these work out.