During that same trip to the craft store, I was inspired to knit up a pair of holiday socks for myself. I did the striping with two different yarns and worked on making jogless stripes. I also learned how to make clean stripes while knitting rib stitches. Pretty cool!
With the exception of mis-matched toes (one is two rows longer than the other), I think they turned out really well. I'm not sure how that happened (probably just not paying attention) but once they are nice and worn in, it won't even matter.