From the Knitting Folks at BellaOnline.com comes this article: Making An Afghan Without Buying More Yarn.
When you look around you and see piles, boxes, bags, baskets, or tubs full of yarn many things may strike you other than chaos. One thing that may occur to you is the joy the yarns in the stash bring you. This review will help you remember why you bought the yarn in the first place. Second, if you are cutting back on your purchases or just want to use what you already own, this is a time to revisit that yarn, especially the yarn you bought without a specific project in mind, and see if you have enough to make a blanket.