Ed Bott comes through again, with another tip of the day for something simple that I never knew:
Move back to the last page: Your hands are on the keyboard and you want to quickly return to the previous page you were viewing in your browser window. Don't move your hand to the mouse – just press the Backspace key, which has the same effect as clicking the Back button on your browser's toolbar. (This tip works in both Internet Explorer and Firefox.)
Much easier than Alt-Left Arrow. Now, if there were an equally simple replacement for Alt-Right Arrow. And a nicer way to move among tabs in Firefox instead of Ctrl-tab, which I find to be a very awkward key combination.
And — my biggest wish at present — if only there were a tool that would let me search inside the text that I am posting to input boxes on web forms before I actually post it.