I started assembling my first Bug-Out Bag a few months before Hurricane Ike in ’08. Amy made fun of me for it at the time but stopped heckling after the storm, when more than once I had something we needed “In the bag!”.
(updated) Here’s the Google Docs spreadsheet listing the contents of my current “Emergency Preparedness / Uh-Oh / Bug-Out” bag..
Do you have one? If so, what’s in it? Do you keep a separate emergency kit for your vehicles?