Keys are sharp little things and mine were digging into my leg when I carried them in my pocket. They probably weren’t doing the linings of my handbags much good either. The quick fix solution? A simple tube sock with an i-cord to keep the keys and sock together.
I used Cat Bordhi’s version of Judy Becker’s Stretchy Cast-On. I use this for toe-up socks but here I cast on the total number of stitches straightaway. The start is a little fiddly on DPNs but nothing too tricky. The tube is a good half-inch longer than my keys and the stretchy two-by-two ribbing pulls the top in over the keys.