For many couples today, moving in together happens long before wedding bells. By the time you’re engaged, you may already share a kitchen, a couch, and even that trusty coffee maker from college. When it’s time to create your wedding registry, you’re not starting from scratch—you’re building on the life you already share. That’s why a wedding registry for couples who live together should focus less on filling cupboards with basics and more on upgrading what you have, investing in the future, and sprinkling in fun, personal touches. Here are some registry ideas to inspire your list and make gift-giving easier for your guests. Practical Upgrades for Everyday Life Even…