In my personal experience, gift registry is useful and makes the wedding celebrations smarter and waste-free. While it is not essential, I would highly suggest you opt for it, as you can add whatever you like. Not only material items, but the gift registry platform also allows you to add cash, charities, personal experiences, holidays and even gift cards. And, then the guests can buy or contribute towards any gift they want to.So, it saves the guests from the hassles of guessing what the couple would want and then shop for the same. Also, as all the gifts are shipped and delivered directly right at the couple's doorstep, the guest can attend the wedding hands-free too.Overall, it is a win-win situation and makes it convenient and easy for one and all.