"Go bags" are a good idea

I like to have a "go bag" ready at all times.   Yes, it's mainly in case of an emergency, but it's nice not having to pack if a friend says, "Hey, let's go to __________ tomorrow!"  I can grab and go at a moment's notice.

(Take note: Being prepared and being a "prepper" are not the same thing.  The former hopes a disaster will end.  The latter hopes it never does.)

If you live somewhere that a disaster could happen (i.e. you live on the Earth), it's a good idea to be prepared, even if it's just the basics.  I don't want six months of food and water in my apartment, but I do have six days' worth at all times.