Father’s Day signifies it’s summertime! That means days at the beach, backyard BBQs, relaxing in the pool, and enjoying time with friends and family. It also means that my two teenage daughters will test every ounce of negotiating skill that I have. From conversations around driving them places or staying out late to dying their hair or buying things, there’s no shortage of asks this time of year. Throughout, I’ve tried to follow some simple guiding principles that have helped me keep the peace, my sanity, and all of us in each other’s good graces.