Adobe Edge Inspect Used while working on mobile/responsive sites to view natively on iPhone, updates in real time. https://chrome.google.com/webstore/detail/adobe-edge-inspect/ijoeapleklopieoejahbpdnhkjjgddem
Benchwarmer This has replaced my pinned Dribbble tab. "New tab" extension, no URL bar icon, transforms your new tab's background into a list of Dribbble popular/everyone/debut/following (you pick) shots. https://chrome.google.com/webstore/detail/benchwarmer-the-dribbble/lhdjhhpjicomphhjpehdhjenbaamdpnn
Bitly Used with custom .htaccess rule and vanity domain to shorten links with 2 clicks.