Whilst they offer some great free services (edit: Google Apps is now only offered on paid subscriptions, even under the previous 5 user cap. But if you got in beforehand, you do get to keep it for free...), Google's products with their user-friendly interfaces can occaisonally be confusing for those of us who know what we're doing - a whole new set of terminology to learn just to be able to do what you had previously learned in the 'normal' / 'homebrew' / whatever way.
This is a quick cheatsheet on how to achieve some of the fundamental and more advanced mail behaviours and operations that you'd expect from any mailserver via your Google Apps admin console. (more)