Addiction

I admit, I have an addiction. I am addicted to registries on-line. I guess it started when Jeff & I got married. I had to check our registry 50 times a day. Now, I get excited when I have a friend getting married or having a baby because I can check their registry too. I have one friend getting married and another having a baby and seriously I look at their registry at least one time a day if not more. I get excited to see gifts purchased and can spot a new purchase right away when I'm looking at their registry. What is it about registries that are so addictive?