With over a year's experience deploying multiple SharePoint 2013 farms, I have found many things that you don't hear anyone talking about but are important. These are things buried in articles and blogs, and items I have run into during deployments. We will talk about things that effect setup, design, upgrade, and operation. Do you know about host named managed paths? Do you know how to quiesce the distributed cache before a server reboot? Did you know service application design guidance has changed for SP2013? Did you know workflow manager requires three instances to be highly available? Do you know how to make SharePoint 2013 able to search Lync 2013 instant messages? If not, come and learn these and more dirty little secrets.