Heated Ski Boot Bags
Those who own a heated boots bag say that they are the best investment (next to your boots and liners) that you can make. There is nothing like slipping into your warm ski boot in the sub-zero blizzard you are always hoping for. To use, just pre-heat your hot gear bag with all your other "close to skin" kit in the bag, like gloves & socks. Once they are in the car, use your 12V plugin for the car ride up the slopes to keep them nice and toasty. Many also say that starting with warm flexible shells has changed their skiing experience for the better. It's not so much about starting with toasty toes (which is nice), but rather that you don't spend the entire morning flexing the shell and re-buckling to establish a nice fit. By the time the boot shell has cooled off, it's formed more closely to your foot. Then at the end of the day, get a head start on the drying process by storing everything back in the heated boot bag and dry your gear on the way home.