Some say it's all you need. Others say you don't need it at all. So what is right? What is wrong? Depends who you are as an individual. What else can I say? It's up to you. For those who found my Groundhog Day cache, sorry about hurting you more with this one.
Standard letterbox rules apply. Feel free to stamp the logbook with your personalized stamp if you have one and use the one in the box to add the stamp to your collection. If you don't have one, feel free to just sign the log per the norm.