This free program provides a number of helpful tools for working with digital photos. XnView's pane interface shouldn't disorient most users, as it uses a tree-like structure to let you view your shots and browse your music collection.
Our lone complaint on this front is that the more complex effects and filters aren't accessible via the main window and require you to double-click a shot before you can use them. Besides standard tools for rotating images and renaming files in bulk, this app also can convert pics among a wide variety of formats.
In addition, you'll find tools for capturing screenshots and creating basic slide shows, as well as a simple audio player. We were excited to see a utility for generating Web galleries, but we quickly despaired when we couldn't get it to work. Still, we recommend XnView to digital photographers who already have a first-class editing program.