Architecture for extremely modularized and easy to mass manufacture high rise buildings that do not look awfull and can be built quickly to form urban centers in existing mall areas.

A social movement for car sharing and other local cooperation. In USA you can benefit from your religious traditions in starting such movements.

Move your capital to companies that provide post peak oil usefull products. Preferably local companies whose workers you can have a personal relation with.

Dont stockpile gold and guns, stockpile roofing material, cloth, usefull stuff that is too bulky to steal withouth a truck.

Invest in making friends.

Sweden, its a raft compared to the world population. My focus is trying to make it a little better and to be generally usefull.