We've used cloth napkins at home for a couple of years, but we were still using paper napkins for lunches. It finally got through my head that we're not only throwing things into the landfills, we're spending $$ (well, a small amount of $$) that could be used elsewhere.
So, with a lot of measuring and a bit of sewing, I re-purposed some soft cotton fabric scraps. The napkins are a bit smaller than the average dinner size -- they're 12 1/2 to 12 1/4 -inch squares, but they do the job.
Knew I had a hit when DH asked me if he could have one of those classy napkins for his lunch ;)