Ok, so maybe they don't look like her leggings... but it made a good title! :b This project has been really fun... I knitted both leg warmers at once. For complete instructions click here But this is how you basically do it: #1 cast on half of the first item. #2 cast on all of the second item. #3 bring up the first, and cast on the rest the the stitches. Just keep knitting! Then when binding off; #1 bind off the first half of the first item. #2 bind off all of the second. #3 bind off the rest of the first. You must know how to do the magic loop method. The legwarmers were my own pattern. Advantage: You feel like you got more done... I mean two at once sounds great. Whether you do or not, I have no idea. Disadvantage: It's kind of hard keeping the two different balls of yarn and projects separate and not letting them get all tangled up. ;) Overall : It was a fun experience. I might do it again, but doing one at a time is OK wi...