KR Cold Weather LARPing: 101?

Doh, umbling is half my vocabulary

A little trick I learned with metal armour. If you wear chain mail or plate mail as your character, you can buy the adhesive hot hands body warmers. They are usually about 4"x6", and last about eight hours. I put one on my chest and one on my back (on my underarmor), then put my chain mail over it. It actually warms up the armour and keeps your core nice and toasty.

A Practical Guide to Layering (based on past experience).

1) Underwear. Celts may have worn nothing more than woad into battle at times, but this a family-friendly LARP. Also, there's a much reduced chance of chafing when wobbly bits are more secured (this applies to both genders).
2) Thermal shirt.
3) Thermal pants/tights. Tuck the hem of the shirt under the waistband. This helps to trap more of your body heat in. For those going for the "natural" look, some manufacturers might make skin tone. For those wearing kilts, tights or non-sheer pantyhose will help slightly.
3) Socks. Tuck the cuffs of your pants/tights under your socks. This will prevent the cuffs from getting frayed from rubbing on the inside of your boots. Also, it makes changing your socks that much easier, should you feel the need.
4) Undershirt. A t-shirt under your costume shirt or dress is recommended, especially given the damp air due to the nearby lake. Also, most costuming is also not meant for sub-temperate weather.
5) Costume pants/dress/skirt/kilt. Tuck the undershirt under the waistband (where applicable). Again, this helps trap more of your body heat in. If you decide to wear a dress, avoid anything that is meant to expose cleavage. Less exposed skin means less body heat loss.
6) Costume shirt. If untucked, consider binding your belt over the shirt to limit the amount of billowing that will occur when the wind blows.