Darn Tough are a good brand, usually heavier weight. Interesting they're at The Warehouse, I thought they were a premium brand. Icebreaker Merino I found wouldn't hold their shape or stay up.
networkn:
Sorry to Hijack, but I am keen to find a set of nice, comfortable, good quality socks for work. Office work, with nicer shoes. They don't need to be thick, I don't want them too hot, but warm enough. Plain Black would be good.
Under Armour Adult Elevated Performance Crew Socks. I bought 12 pairs, wearing them every day they lasted 2 years - 60 wears each on average. Once they wore out I threw them away and bought more. Only available from the US, the ones you can get here are a different model I didn't like.
For warm weather I like Danish Endurance. They have a decent range but I've only tried this model.