I have been working on DK (8 ply) weight socks. The yarn is from Yarns by the Bay (DK Muddy Waters – 100 grams, 85% SW Fine Merino and 15% Nylon).
The socks are knitting up quickly – I only need 40 stitches rather than the usual 64. Plus each round is ‘taller’ so I don’t need as many rounds.
It might turn out that they are too bulky for day to day wear, but it was worth experimenting.