To assert her financial contribution during divorce, Morgan calculated the market cost of her labor as a stay-at-home parent (nanny, cook, housekeeper). This reframed her non-monetary work into a tangible economic value, aiding in a fair settlement negotiation.

Purely rational choices, like never paying off a low-interest mortgage, ignore the powerful emotional benefits of security. Housel argues for being "reasonable"—making choices that help you sleep at night and align with your personal psychology, even if they aren't optimal on a spreadsheet.

By deciding on the terms of their separation themselves and using a peaceful mediator to formalize the agreement, Morgan and her ex-husband avoided costly legal battles. The entire process cost them just $4,000, which they split evenly, showcasing a much cheaper path.

The cultural pressure to own a home can be financially crippling for young professionals. It drains liquid assets for a down payment, reduces career flexibility, and can lock individuals into jobs they hate simply to cover the mortgage. Renting provides more career agility.

Your choice of a life partner has a greater impact on your financial future than any career or investment. Financial incompatibility is the number one reason for divorce, underscoring that marriage is a financial contract at its core, where alignment on money matters more than romantic feelings for long-term stability.

Morgan finds living with her ex-husband manageable because she views it as a temporary phase while her own house is built next door. This mental model acts as a "saving grace," helping her endure the daily challenges of the unconventional but financially necessary arrangement.

Instead of battling over individual assets, couples should first negotiate the overarching ratio of their post-divorce living standards (e.g., 1:1 after a long marriage). This principle-based agreement provides a clear framework for dividing assets and support, preventing fights over minor items.

Contrary to common advice, high expectations aren't inherently bad for marriage. They create a bifurcation: couples who invest enough to meet these expectations achieve unprecedented levels of fulfillment, while those who can't are often unhappier than couples from past eras with lower expectations.

A growing trend in prenups involves clauses designed to protect second-generation wealth. Parents who plan to leave significant assets or provide ongoing financial support are now insisting their children get prenups to ensure family money doesn't become divisible marital property in a divorce.