Of all the things I knit, the most appreciated, requested, and used item is the humble sock.
This pair is a Father's Day gift. The pattern is out of my head. I've put a western heel on it using some solid sock yarn knit together with a reinforcement yarn. This gives it a rag look that mimics the Trekking XXL (color 102), and the Trekking's pattern is maintained over the top of the foot.
I love TrekkingXXL. This is my fourth pair and I have enough yarn for four more waiting in the stash. I love that the color is totally random, it's durable, soft, and it goes a long way.