Image that its Friday morning, just like all of the others, the Accounts Payable Manager comes out of his/her office to the sound of paper being shuffled throughout the AP department. He/she looks over their empire of personnel and watches as each clerk pulls a check from one pile, the paper remittance details from another pile and then any backup for that remittance (debits, notes) from another pile and then puts each of these into a windowed envelope and inserts the envelope into the stack with the others. Then repeats that process over and over for the balance of an hour.