Wedding registries are also called bridal registries these days, although it is something that both parties should be involved in. There are two main reasons that you want to set up a wedding registry for your wedding. One being to get everything laid out that you and your soon-to-be spouse will need for your new life. The other is to make shopping for those things for your friends and family easier. They don't have to guess at what you may need or want. It's all laid out for them. All they have to do is pick something on the list and go.
Before you even start to put together your wedding registry list, you and your fiance should sit down and have a heart to heart talk. You need to evaluate what you both want and what you both need. Consider your lifestyles and what you foresee in the future. Are you going to host many formal dinners at your home or are you more of the backyard BBQ kind of people? Things like this will help you create a wedding registry that will actually be helpful. You both should settle on the kinds of things you want and need long before you set foot in the store.
In the past, wedding registries would typically include your normal, everyday household items like sheets and dishes. Today though, especially with so many people living on their own or together before getting married, you may already have all of these things. That's OK! It's perfectly acceptable to put other kinds of items on your wedding registry wish list. Want a matching pair of ski's for your first vacation? Add it to your registry!
On the other hand, don't register for needless things that you don't foresee using just because it's a typical wedding registry item. If you already have something, don't add it to the list. If you now you'll probably never use something, don't add it to your list.
If you don't know what to add to your list, just take a look throughout the store(s) that you use for your wedding registry. You're bound to found some ideas!