I've used the cotton cone yarn from WalMart a lot for both crochet and knitting. It's intended for dish cloths and things, I think, but my DD and GD both have knitted sweaters they love (GD at middle school was asked, where'd you get your sweater, other girls wanted one too!) and I've crocheted a ripple afghan from it. It's cheaper to buy that way and avoiding ends and ends and ends and more ends to weave in is great. If I want, I just wind a smaller amount off. Whatever yarn you use, have fun!