Cooler weather has arrived, and many of us will soon be spending more time inside. It’s a good time to think about … retirement.

That’s right, retirement.

Not jazzed? Not surprised. Who wants to calculate a savings goal or check on their Social Security earnings, when they could snuggle on the couch and binge watch Jennifer Aniston and Steve Carrell in “The Morning Show”? And sure — retirement may sound like a far-off, even somewhat theoretical event. You may sometimes feel that so much money is needed, it’s useless to even try to build a nest egg. But the best way to prepare for the eventuality of retirement is to start planning and saving now, so your money has time to grow.

[Take our 7 Days to a Better Retirement Challenge.]

Saving for retirement is increasingly important, because we as a nation are living longer. Over the past century, Americans have added 30 years to their lives — but half of us are financially unprepared for those extra years, a recent report from the Stanford Center for Longevity found.