Use Alfred to Search Alfred: The Question Mark Trick
Did you know that you can show all your Alfred keywords and hotkeys if you can't recall what you've set them to?
How to safely back up and sync your preferences before upgrading OS X
Syncing your settings keeps your carefully created preferences safe. Most importantly, it also allows you to stay in sync on more than one Mac.
V2 Sneak Peek: Refining the Preferences
One of the big benefits of doing a major release and, in fact, a thorough rewrite of Alfred is that it has allowed us to rethink many of the basic aspects of the software.