take money out of the bank.... to cover at least a year of rock bottom living expenses if you can afford it
review your plan for protecting yourself... or where you will go if you need to get 'out' and more importantly, HOW will you get out? My take is, when it happens, if not quickly handled, figure the criminal element and gangs will start to take advantage of the situation in a serious way... and if your plan involves getting in a car and driving, you may encounter 'resistance' on the streets to your efforts and possibly a lack of gas...
make sure all of the gas cans are full and there is 'spare food' on the shelves to cover a few months or so...
more batteries, plenty of flashlights that are bright (blinding even better), etc..
bottom line, think security, food and self protection...