How to maximize your Energy Pack Mafia Wars

After level up, demote your mastermind and wheelman. Spend all your energy for your fave job (or to find many fave loots). Use your energy pack, spend all till almost level up. For energy account (jobber), there must be a lot of scrap of energy. Do for Biggest boss fight on New York (Enforcer. So you will have more exp on next level .....