Get more out of your Mac with these preinstalled software gems, hidden away in OS X Mavericks (and in many cases earlier versions of OS X too). 1. Keychain Access Hidden deep in the Utilities folder of the Applications list, Keychain Access is a powerful app designed to store your username and password details for websites and apps, amongst other things. But for most ordinary users it has a useful trick up its sleeve. If you’ve set an app or website to login automatically, and have since forgotten the password, Keychain Access can reveal it to you. Open the app, then type the name of the app or website into the search field. Results will appear in the main app area, and look for any that are marked either "application password" or "web form password". D