Busting through the Stash

Using up the yarn in my stash is something I need to do before I can seriously justify buying more things. I'm looking for ideas on Ravelry. I would do something like use extra large needles and knit a bulky blanket with multiple strands....but I think the end result would drive Lawrence batty. He'd toss it out before I'd get a chance to use it. I'm not sure I want to do a project where I'm not sure I'd have enough yarn...but that may be my only opportunity to create something worth keeping.