just made another pair of socks in DK size 4mm needles lovely and warm :) especially because our boiler has broken and at the moment we have no heating !
I've knit these so that the tops are slouchy but the feet fit nice and snug by casting on 52 stitches and reducing to 46 stitches by the time I get to the heel giving me 23 stitches to work for the heel so that the foot fits snuggly. I use Kelley's sock class on you tube for my pattern, she is so easy to follow, she uses the magic loop method. Have a go it is easy :-)
I've just stumbled on some free sock patterns on Knit Freedom excellent.