About a year ago, we implemented a small VMware solution for a customer. At the end of the project, the customer requested that we provide some basic information about the system. They didn't want anything crazy, they just wanted to know how to get around the system and have a basic understanding of how to do their normal system day to day support tasks, but in a virtual world. I wrote up a nice document with screenshots, how-to's, and such. [...]
Gostev at Veeam referred me to a VMware vSphere 5 reference card from Michael White at VMware. It looks to be really useful for you VMware vSphere admins out there. Here is the link.