It takes a lot of work to keep a loving relationship healthy. But a week at a couples' retreat isn't the only way to get closer. According to Business Insider, there are plenty of fast, easy ways to show your partner you care every day. Happiness expert Gretchen Rubin suggests making it a habit to practice "warm greetings and farewells." Every time someone comes or goes, everyone gives a sincere hello or goodbye. Physical affection is linked to greater happiness in romantic relationships.
