Just wondering how do you guys keep your coffee hot while you do things? I know, the correct answer here is "life moves too quick, sit down and enjoy your coffee", as a school teacher, that can be difficult during the day. I have tried the little mug warmer hot plates (the mr. coffee one isn't hot enough, the one from RadioShack is alright?) I splurged on "Ember" mug, and while its great, I'm limited to that particular mug. What else? Thermos' tend to get drippy around the threads and I gotta carry a big thingy (although I love my zojirushi travel mug), my contigo mug.. is ok, but I don't like the spout (you can't see the liquid coming out until the hot coffee hits your lips...ouch! I know, I know, first world problems). How do -you- do it?