One of the wonderful things about sock knitting is that it can be as simple or as challenging as you like. Once you've mastered a standard pattern, you make it over and over again. I find knitting plain socks with fun yarns very relaxing. Or if you're up for a challenge, there are all sorts of patterns and variations. Sock knitters all have their preferences: which needles to use, which yarn they prefer, the construction they find easiest, which...