Build several survival kits "With" Your family. Kits for cars, trucks, snow machines, ATVs, riding in someone Else's airplane, to wear around your neck, in your office, home, give them for Christmas, Birthdays. Lots of fun for the whole family too build survival kits. A starting point is M-40: http://www.m4040.com/Survival/Survival%20Kit.htm
If you build it you will know what is in the kit. Do you really want a K-Mart mass-market survival kit at -28* with a man down and a wrecked snow machine.
Note: Only a Silly'Wabbit thinks he can get by with one kit and move it to the boat, ATV, snow machine, car, etc. It will always be O'crap the kit is still in the ________,and it was on my list to bring.