And now we're back to the expensive but actually suitable-for-socks yarn, this time in a nice variegated light grey mix (the slightly green tones you can see are a camera artefact; the yarn's actually very calmly monochrome). This time I've made them a bit narrower, and I think that's going to work very well.
There is someone else I'd like to knit a pair for. Unfortunately, he has the sort of wife who'd be inclined to object to extramarital socks.