Set of Rules
The Wiki is nice but in my Opinion there is nothing that is really your Face. Teams was newly introduced at my Office and everyone got a number of guidelines for teams verbally. I would love is to have the Option to create a whole new button that is always apparent for the User. There we would love to put the guidelines and rules for using team at our office. I guess it would be useful for a number of offices because you could visibly tell people how to behave so that nothing goes to Chaos. Like how to name files, who to ask if you want to create Teams and what Plugins to Use.