Got stock or mutual funds that have grown a lot over the years? There's a giving strategy that lets you support the causes you care about, skip a chunk of the tax bill, and decide the timing yourself. Here's how a donor-advised fund actually works.

Married couples face a Social Security decision that outlasts one lifetime. Here's why the higher earner delaying benefits to age 70 can mean a larger, lasting income for whichever spouse lives longer, and how to think about the tradeoffs.