When there is nothing left to buy, do not go and invent something.
Do not find a different brand of the thing you have.
Do not change the programme because a better-looking one went on sale.

Sit in the empty cart for one week.
It is the first honest week you will have had,
it is only a week, and nothing in it will hurt as much as you are budgeting for.

The Book of the Merchant — Wall 49:8