>>1926749Hot water bottle.
Get yourself a Kleen Kanteen in 64 ounces. Before you go to bed, boil some water and dump it in until it's full. Careful it will be hot. Stick that fucker in the bottom of your sleeping bag. It works, very well. Also, when you go to sleep keep a big empty plastic bottle in your tent. Piss in that instead of getting up in the middle of the night. Doubles as a secondary hot water bottle. Stick it in the small of your back. You can also use a few handwarmers in your sleeping bag. These have always worked for me.
