Severe weather and power grid failure happen regularly where I live, especially around this time of the year. I prepare for it like I prepare lunch. Food, shelter, batteries, and communication.

The other stuff on your list is just far, far less likely, in my opinion. Fire, burglary, sickness, car accidents, and other regular life's troubles are probably more of a challenge. Complete breakdown of society is easy to prepare for. You just need a good cache of a variety of hard liquors and condoms, and you'll be all set. This works for coronal mass ejections, too. Try doubling the dosage. Liquor can also disinfect for the superbug invasion. (Seriously, am I wrong in thinking that it's just going to be really hard to prepare for the superbug? Unless we know what it is, it's going to be hard to do the things to protect oneself, except the relatively commonsensical stuff.)

I'm still working on the alien invasion scenario. Zombies, too.