We know when we have enough of some things, such as Internet passwords, emails, promotional coffee mugs, and free address labels.

We often have a sense of what is sufficient, even with respect to things we buy. We know when we have enough toothbrushes, tires, raincoats, and automobile jumper cables.

With other items, it may be difficult deciding what is enough: umbrellas, reading glasses, black shoes, and chocolate. Money is the most challenging. How much is enough?

from When Women Give