sugar and cream yarn

[Jean Marie]

A cotton dishcloth made with an H or I hook and single crochet stitches gets nice and thick. If you feel that isn't heavy enough, you can always make it double. Make your piece twice as long as you want the finished cloth to be. Fold in half and crochet the 3 open edges together.
I wouldn't advise making dishcloths out of regular 4 ply yarn, but the final decision is always up to you.

If you hold 2 yarn together or fold the yarn in half then the yarn will twist.

I have a dishcloth that I knitted out of 4 ply yarn. It's stretched out and I still use it. I like it.