I made it to within three rows of the end of the my second leg warmer when I realized I didn't have enough yarn. It's some partial skein I've had laying around forever and I don't have the wrapper for it so I have no idea what it is in order to go buy more. The only option was to unravel it and unravel the first one and crochet the top edgings with fewer rows and with a smaller hook so as to conserve yarn. I've finished (again) one leg warmer, still several inches short. I'm hoping that when I do the next one I will end up with some extra to join onto the first one so that I can finish the bottom edging. Here's hoping.