Let's see..
1. Armor up. Grab bullet proof vest over in closet, grab snowboarding helmet to protect head, biker gloves in the cosplay bin downstairs..
2. Melee weapons since I have no idea where grandpa's police pistol is. Hell, he's the retired chief, I don't even know if he still has it. Big bro's bo staff maybe, Guitar upstairs in computer room, anything that has some good weight/sturdiness to it and can be held relatively easily. Raid the toolshed.
3. Stock up on food, drinks, etc., I have a duffel bag that I carry EVERYTHING in. (Protip: Grab Pills)
My house is close to alot of grocery stores, and I can run fast. Where would I go? No clue. 18 and can't drive yet :P. But then again, who would care?