I have a real fetisch for unique things that I've sought out, and most importantly, most other people don't even know about.
So when I needed a thermos for my train commute, obviously I had to get this Japanese Zojirushi stainless steel mug.
It is crazy. Doesn't leak what so ever. Keeps the liquid scolding hot. I actually cool off my tea at home, to be able to even drink it before I get to work.
Steepshot