You'll find no shortage of browser add-ons for the popular photo-sharing service Flickr, many of them focused on making the site more immersive. You can browse images in full screen with a simple hack however, no add-on necessary.
Matt Haughey was never really happy with the interface at Flickr, it always seemed like he could never get the images as big as he wanted without excess fiddling and fighting with the interface. He increased the default image size but that wasn't enough. His solution relies on a clever mouse-less version of the slideshow:
1. From whatever page you access contact photos, a user's photostream, and/or a photoset, click on the slideshow link
2. As soon as the slideshow loads, hit the pause button on the lower left
3. Use your keyboard's left/right keys to navigate through the set of photos at full screen. If your mouse pointer isn't in the very top or very bottom of the browser, all slideshow chrome will fade in a couple seconds leaving you with giant photos on a clean crisp full browser display
We tested it out—see the screenshot above—and it is a quick and painless way to enjoy completely full screen images sans any visual clutter or downloading add-ons.
Have your own clever hacks for getting more out of services without resorting to using add-ons and Greasemonkey scripts as bandages? Let's hear about it in the comments.