Super duper simple cotton washcloth: With size H crochet hook, chain 39 (not too tight). Single crochet in second chain from hook and across to end (38 stitches). Chain 1, turn, single crochet across. Repeat until square (I found this is just about one entire small, 2 oz ball of ‘peaches and cream’ cotton yarn), preferably while watching Dr Who. Fasten off, weave in ends. Go take a bath.