Ya really gotta run out and buy a buncha chit 'cause you might be snowed in for a few days...or a week? Really? Ya don't keep basic chit in the house?
If you have to plan for additional meals at home you will probably need more things
Many people shop on pay day, so if they get snowed in for several days it's time to buy anyway
It would be foolish to NOT stock up on last minute items
It doesn't mean you'd die without them
It's called "being prepared"