1. A Nalgene bottle filled with boiling water is equivalent to having a spa inside your sleeping bag.
2. Though they can be nibble, yaks will run into you if you don't move out of their way.
3. Just because the airplane has an open cockpit does not mean you can stick your video camera in between the pilots as the plane lands.
4. When a guide or guidebook gives you a fast and slow approximate journey time, plan on the latter.
5. Thoroughly enjoy your last hot shower in Kathmandu.
6. Brand names mean nothing in Nepal. There is so much knock-off merchandise that a farmer's toddler-aged child in the mountains will own more North Face and Mountain Hard Wear than you.
8. Not only water has a freezing point.
Serious Lessons Learned
1. Camping in the winter can not be done alone. The tempetures are too low and the winds are too strong. An entire group of trekkers, porters and sherpas are required to help carry and set up the equipment.
2. If camping in the winter, your schedule should allow for the trekking-day to start after the sun is out and end well before the sun goes down.
3. The lighter your backpack the more you will enjoy the trek and the views along the way.
4. A personal guide is a luxury, a good guidebook is sufficient.
5. The slightest bit of rushing can ruin a trip. Giving yourself extra time allows your body to adapt better to the high attitudes and gives you more opportunities to interact with the local people and fellow trekkers.
6. Spare no cost on good-quality, warm clothing.