All browsers: Bookmarklets are an awesome way to pull off cool browser tricks without add-on weight, but they require remembering the right keywords. Quix is an all-in-one bookmarklet that covers tons of web shortcuts, but also lets you add your own.
Want to get a Google Map pointing at an address, search Twitter for a meme or email a link? Quix has you covered, and probably covers 80 per cent of the bookmarklets and quick-search functions you've already installed. Once you integrate your browser with Quix, everything you want to do on the net through shortcuts or bookmarklets becomes a simple command — "imdb avatar", "dict quixotic", "bitly" and so on. It's like Firefox's keyword bookmarking, but taken to another level.
Check out what Quix can do in the video above, and at the site itself. If you've discovered your own bookmarklet commands you can pass into Quix, tell us about them in the comments.