Reality- So it has really happened. Super flu, world war, zombies whatever it is, it has happened and nice people are few and far between. Your supplies are running low and town is not safe. Your neighbors are all gone. At this point going into their house for extra supplies is not stealing. It is surviving. Look in their cabinets, garages attics and gather what you can. Blankets, food, batteries,gasoline, oil, ammunition, jewelry, water, medicines, vitamins. Don't focus just on pain relievers. Get every single bottle you can. You or someone you meet may need them or they can be used as bargaining tools.You will want to go to every house you are able to.
Vehicles- You are going to want something sturdy and dependable. Again if your vehicle does not fit this description find one in your neighborhood. Look at tires make sure they are in good condition. Check gas levels. Siphon from other tanks if you can to fill it up and those gas cans you have collected fill them up as well. Trucks and SUV's are going to be your best bet, because at some point you will probably need to drive off road. Try to find one with a hitch so you can potentially haul a trailer. Try to find a couple spare batteries. Most vehicles have similar ones.
Stay or go- First you must assess the situation. Is it feasible to stay where you are? In a familiar locale. Can you realistically be safe there for an unspecified period? If the answer is yes, then continue to make a daily habit of foraging for supplies in a circular radius from your home. Barricade your home against intruders. Store your supplies in more than one place. Perhaps use a neighbors house as a separate cache. Have escape routes planned out. Do not draw attention to your location.
If you must leave. Have your supplies packed up neatly. Have a planned route. Use that ham radio. Any GPS tracking or radio usage that is two way, try to do away from your actual residence Locate others willing to caravan with you. Remember there is greater safety in numbers but not everyone is going be honest or kind. If you decide to meet up with someone, meet at a location other than your residence,and go armed. That way if they are not as altruistic as they may seem, you, your family and supplies are still safe.