Celebs do it! Hip 20-year-olds do it! Knitting is no longer your granny's hobby. You can do it anywhere—on the playground while your kid monkeys around on the monkey bars, or while cheering at endless soccer/baseball/hockey games. Knitting is soothing, makes heartfelt holiday gifts and will force you to think twice about dropping $40 on a cute hat for your baby once you learn you can make one for $5.