Google Docs - Pressing ⌘+s (ctrl + s) the first time will save the document in the interface, while pressing it again will open the default browser dialog to save the page to your hard drive.
/via Gregory Koberger
Chrome - Cmd-1 is the first tab, Cmd-2 is the second tab etc… but Cmd-9 is always the last tab.
/via Mike Cannon-Brookes
Google Chrome browser - Press tab to search website
