However, I can only get lucky like that so many times.
So now I keep the following at home:
* 5 gallons drinking water
* Canned food for a week
* First aid kit
* Matches, lighter, Sterno cans
* Solar USB charger
* Many flashlights with spare batteries, plus a battery-powered lantern
* Hand-crank radio
* Solid liquor collection ;)
* Equipment to make a fresh cup of coffee with no electricity (Sterno, hand-crank coffee grinder, French press)
* A big bucket for, well, sanitation
I've also got my camping supplies, which includes a Coleman stove and a few small propane canisters. Having been in a few floods I will also never live in a ground-floor apartment. I also keep all this stuff boxed up in plastic crates, so if I needed to evacuate I could load up my car with all this gear in about 20 minutes and be on my way. My goal is to be able to survive a week trapped in my apartment with no utilities, or living out of my car for the same amount of time.
I bike to work and in my pannier I keep a Leatherman multitool, pocket knife, latex gloves (mostly for fixing my bike chain, but also useful in other emergencies), 3M N99 mask, flashlight, poncho, a garbage bag and a small thing of duct tape. In most of the kinds of disasters that hit Colorado, I would be able to get home, either walking or by bike. I only live about three miles from work.