Hi,I think you can do 4 registries, as long as you know how to do it. I wanted to share what I did (I had 3 though). I divided my guests into 3 groups of people who didn't know each other: work, church and family/friends. Then, I included a different registry card for each group and at the end, all my registries were covered!It might not work for everyone, but at least it is an idea.Good luck,