Type A: same old, being A miser "looks" very frugal, wallet will never be empty, but how also not full.

B: usually is credit card payment is more than the number of deposits, know to save money, but not at no cost.

O: deposit more generous old guest, when few deposits is very stingy.

AB: always keep a reserve is to be sitting right beside when you hear AB cry poor, maybe he than you've got some money.