Moving out teaches you the price of things your parents never mentioned: dish soap, paper towels, the power bill in July.

CREATIVITY

WHAT THIS MEANS

Someone has been absorbing a long list of small costs on your behalf, and the list was never read aloud. Dish soap, bin bags, the extra forty dollars when the air conditioning runs all month: none of it is dramatic, and all of it adds up. Finding out is less about money than about seeing how much invisible work was being done.

Before you ever move out, spend a week writing down every household thing that runs out in your house. Price three of them. It is the cheapest preparation there is.

A QUESTION TO SIT WITH

Which household cost surprised you once you were paying it?

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Free, with nothing to buy inside it.