My father had a rocky start to his career. There were many years at the outset of his working life when he did not make much money and struggled to pay his bills. When creditors would call, he would explain to them about the payment hat. He would tell them that once a month he turned his fedora upside down and put all of his monthly bills in the hat. He described how he would then mix the bills up and pull them out and pay them until the money ran out.
Finally, he would warn the creditors that if they kept calling him and annoying him, their invoices were not going into the hat.