Tips for Keeping Kids Warm in Cold Weather

My son's nature school just posted a message about their day in the cold weather: 

Starting a fire after snack cheered everybody up. We all had meltdowns after snack because they get so cold while sitting still. Today Keats had four layers under his jacket. While it was 38 degrees my phone said it feels like 33 degrees and it's always a little colder in the forest too. When in doubt put more layers and start to use those buffs and neckwarmers.

Here are some more tips about keeping kids warm in near-freezing weather: 

• Start with a "wicking" (non-cotton) layer against the skin (so their base layer doesn't get damp and clammy).
• Core warmth is KEY for keeping extremeties warm (the body naturally diverts heat to the torso to preserve vital organs), so when in doubt, put extra layers on (shirts & pants).
• Tuck shirts into pants. Tuck pants into socks. Tuck rain pants over boots (to keep the moisture and air of of them).
• Only put 2 pairs of socks on IF their feet fit comfortably in boots (otherwise the foot compression of a snug fit can make feet colder).
• Put a neckwarmer on before the top layer of jacket (to keep wind/air out of the neck area).
• Put mittens on before the top layer of jacket. Try to get their mittens on before school in these cold temperatures. 
• Pack an extra pair of mittens (labeled) - if mittens get soaked they stop functioning!
• Wear a hat without a bobble on top so kids can put their hoods up if they're cold.
• Wear wind- & water-proof gear even if it's not raining. 
• Pack higher-fat snacks (trail mix, nut butter, HB eggs, energy bars, jerky, etc.)
• Put warm water in a metal water bottle (so they can hold it or put it under their jacket if their hands get cold). 
• Put an aluminin-foil-wrapped sweet potato (half) in their jacket pocket (as a hand warmer + snack!).

Please comment below if you can think of more ideas that I've forgotten to list here!