Driving around the city looking for a place to park is probably one of the worst parts of being a driver - you finally buckle down and pay someone for a spot that seems like an insane amount of money for the privilege of leaving your car there. Finding parking in a large city like Melbourne or Sydney for a major event like ball games or concerts can be tedious and time consuming. However, you can turn this disadvantage into an advantage if you look at it from the aspect of a business owner. Parking lot businesses are one of the most lucrative sources of income.