Unfreeze the keyhole on your car
Cars really don’t have it easy in the winter. Low temperatures can cause the windshields and mirrors to freeze, but that’s easily fixable when you can get in your car and turn on the heating. But what happens if the keyhole is also frozen?
If you have some hand sanitizer with you, you don’t have to worry about that. Pour as much of the hand sanitizer into the keyhole and pour some of it on your key also. The alcohol in it will cause the ice to melt, and you can get into your car.