Guns, ammo, food, water, gasoline, on a boat in a large body of water, nuff said.
I am not kidding about zombies, i dont imagine them as something fun to think about to entertain myself, i truly believe they are not only potentially one of the strongest apocolyptic forces imaginable but also very VERY real, they may not be a problem right now, but i have a feeling one day we WILL have an epidemic to deal with concerning the walking dead.