Dan Kois and Allison Benedikt discuss parenting and money with New York Times columnist Ron Lieber and then check with Slate staffers about how they did on their 2015 New Year's resolutions.Mom and Dad are Fighting is brought to you by BollandBranch.com, the company that makes luxury bedding affordable. Get the nicest sheets you've ever owned for about half the price of what stores and boutiques are charging. Order right now and they'll give you $50 off a set of sheets, plus free shipping. Go to BollAndBranch.com and use the promo code MOMANDDAD. And by Texture, the mobile app that lets you tap directly into the world's most popular magazines, anywhere, using your phone or tablet. Dive deeper into Vogue, People, Esquire, Time—and hundreds more—with interactive content for a richer reading experience. Right now, try Texture for free at Texture.com/momanddad. And by Club W, leading the "grape to glass" wine revolution. Answer just six simple questions at ClubW.com and their algorithm will create a Palate Profile just for you. Get wine directly to your door, perfectly customized to match your taste. For 50 percent off your first order, go to ClubW.com/momanddad.Learn more about your ad choices. Visit megaphone.fm/adchoices