No! It's totally up to the couple. Heely says that about half the couples she works with choose to do a wedding gift exchange. She also emphasizes the value in handwritten notes: “A very heartfelt, timeless gift that costs no money is writing a letter to your S.O. for them to open on the wedding day," she adds. "It centers on the purpose of the day, focusing on the marriage and the love that they have for each other.”