These are my notes from the talk Day To Day Site Administration Made Easy at DrupalCamp LA 2010.
If you create an admin role, anytime you add any module you have to go back into permissions and enable that module for your admin role. This module does that automatically.
Lets you filter your permission page before you start assigning permissions, so that you don't get presented with a huge screen full of checkboxes. If you want to, you can keep the huge screen and use CheckFox, a FireFox plugin, to enable a module for all roles.
Allows you to download a database to your local machine or on a schedule. You can backup your files from FTP or however you do it, and this allows you to get the other piece of the puzzle, the database.
An autocomplete box that you can expose as a block, which allows you to see how a page looks from the perspective of a particular user, without taking the time to expressly log in as that user.