Do you know why you have the expense? Of course you do, because it’s always been there. Do you really know why you have the expense? Find out what it is, why it is there. Go way back if you need to. See Expense This for how to find out. Are you reviewing your expenses for the current month during month end close? Good for you. Just kidding. By then it’s too late. You should be looking at expenses every week. If you do a payables run every Friday for example, review the expenses the same day. Better to know now because you have time to find out why or correct coding errors. If you wait until month end, it’s too late. Do it weekly and there will be no surprises.