Let's talk travel/insulated mugs.

So can we talk mugs? I tend to make a half liter (~17 oz) of coffee in a French Press in the morning. I run into the problem that I get about a half hour to 45 minutes (I’ve never timed it this number might be wildly off) in before the, “Crap! Its getting cold!” moment and feel like I have to accelerate my consumption to...