Have you ever used a bookmarklet? These are applets added to your browser bookmarks. Here is a screenshot with some of my bookmarklets:
The bookmarklets I use most often are Scoop.it (post a web site on Scoop.it) Save on Delicious (save a webpage to Delicious), Pin.it (pin a site to Pinterest), and bit.ly Sidebar (get a shortened URL for a site).
To install a bookmarklet, you just need to click and drag the bookmarklet to your toolbar (appears below your URL). If your bookmark toolbar isn't visible you can check "show bookmarks bar" in your browser settings.
Here are links to the bookmarklets I use most often:
Bit.ly Sidebar bookmarklet
Click here and here to read other posts listing more bookmarklets.
I highly recommend giving bookmarklets a try. They can be real time savers!