Office Go Bag
I haven't found much on office go bags, and the DC Metro Area would seem to be a natural place where you might have to stay a period of time at your office due to terrorist attack or wild weather. I recall the time the Wilson Bridge was shut due to an attempted suicide that added hours to the daily commute.
This list is pulled together from various sources. For purposes of this list, we will say you are stuck 24 hours, and that you might not be able to shelter in your office.
1. First start with a bag. Best: a backpack or a bag with a strap that allows you to move and have your hands free. Minimum: any waterproof bag.
2. Some cash. ATM's might be down. It's DC. $50? A have a number of smaller bills or your paying everyone in $20's.
3. Some food.
4. Spare glasses, medicine, etc.
5. A Cell Phone Battery backup.
7. Flash Light.