Going to the bank. Getting at your money when you are outside your business may be very attractive to a robber because you are more vulnerable. If you have cash, do not follow the same pattern each day and vary your route. If you have considerable cash, take two cars. Don't let a would-be robber get the upper hand.
Locks only slow down a thief.
Quality locks with substantial dead bolts are a step in the right direction. If you use padlocks, make sure they are of sufficient gauge steel with multiple tumblers and custom keyed for you. At the same time, adequate lighting, closed circuit television and a properly monitored security system may be the best deterrents. Remember, burglars don't like light, noise or anything else that draws attention to the scene. Exercise key control.