This is a 3-day bag? I realize this has some seasonal variation to take into account, but ...

OK, first, WAY too much redundancy. How many multi-tools do you have? 1 for you, 1 for your husband, 1 for your son? Good if you get separated, but you're a walking Home Depot.

Ditch the Mag solitaire's and get a decent flashlight. Something with a run time longer than an hour. Lots of good options: Fenix, Olight, iTP ... For about $20-30 each, you can get a light that keeps a battery every 6-12 months with average pocket use. Try and pick up a model that runs of a single AAA or AA battery.

Same with flashlights. You realize you have 6 different lights for 3 days? I know it gets dark, but c'mon, you're not active for all 12 hours of nighttime. 1 headlamp. Period. You and hubbie already have flashlights, so drop the Mags. Then only carry FOUR spare batteries (ie, one replacement set for each light)

Ditch the CRKT folder. You have a fixed blade, and apparently more multi-tools than God, and each of those have a blade already.

Ditch the tube tent. Maybe the 1-p Heatsheet too. You're too redundant again.

That's a LOT of food. 3 meals a day AND snacks? While I understand more calories are needed if outside and it's winter, I would seriously pare it down. Ditch the lunches entirely, cut the snacks to half. I pack for one meal/person/day, with maybe 1-2 powerbars/day as well. YMMV ... but you look like a walking restaurant. How much water are you carrying, btw? I'd recommend at least a full day/person, just to carry you through until you can find a source and start replacing it.

That's a LOT of clothes. While I understand the cold, I assume you guys won't be running out of the house into a blizzard in January without already putting on a hat, gloves, etc? Consider dropping some of the stuff you already plan to be wearing. And maybe consider changing that wool jacket for a down vest. Light, packs smaller. Plus you keep your core warm still, though admittedly at the sacrifice of your arms. Which is why you carry a spare long sleeve shirt.

Sorry if I sound harsh.