Change the battery in your smoke alarm and test any other warning and safety equipment in your home and car.
Do you have appropriate fire extinguishers in good, charged condition in the kitchen and at least one other place in the house? (I keep my extra in the bathroom because it's not an area likely to spontaneously combust and it's by the front stairs and therefore handy for an emergency escape).
Do you have renter's or home insurance and an up-to-date inventory of the things you'd want to replace? (Walk around with a video camera for a really quick way to do this inventory and then store the tape away from the house, eh?)
Discard what you want to let go of, but be sure to do what you can to prevent losing what matters to you.