A friend of ours moved into his new home in our neighborhood this last weekend. After I got a peak at the color scheme of his kitchen, I was able to knit up some quick dish cloths in a 100% cotton yarn (i.e. Lily's Sugar 'N' Cream). It's fun to whip up a project "a la instant gratification."
These are easy, fast knits: seed stitch (k1, p1 over an odd number of stitches), basket weave (k5, p5, k5, p5, k5), and garter stitch (knit all rows). Cast on 30-35 sts. with size 7 needle. Garter stitch was used on the row ends to prevent any curling and some cloths were trimmed with a row or two of single crochet in a contrasting color (an easy way to introduce an accent color).
I've made several of these dishcloths with left-over bits of cotton yarn for my own kitchen. They seem to last longer than the traditional kitchen cloths and are machine washable. You can coordinate yarn color with your kithen's color scheme and there's something comforting about doing the dishes by hand with a hand-knit dish cloth.