Denis' enthusiasm is contagious! So I'll list a few.
1. Snowpeak Titanium Trek 900. Finally my search for 'The One Pot' is over. It's small enough to use as a cup, yet big enough to boil enough water for a meal and drink; the deep lid is a cup, bowl, plate and frypan; handles are removable if I want, has graduations on the side, etc.. my go-to pot.
2. Patagonia Houdini windshirt. At the risk of being repetitive, finally my search for 'The Windshirt' is over. 100 grams, fits in my back pocket, good balance of breathability and water resistance, great good design (up around face for extreme weather), great zipper, drop tail, etc. Most useful 100 grams of gear I own.
3. Smartwool or Montbell merino baselayers. Comfortable, warm when I need it, but not somehow not as hot indoors as Capilene. I wore tops and/or bottoms almost every day last winter.
4. Inov-8 330s. Changed the way I hike. Difficult to describe, but similar to wearing sticky hiking socks instead of shoes. Looking forward to their 285g mid-top "boots" to repace my Montrails at 878grams EACH.