Get a shrunken url for the website you are visiting straight from your browser toolbar. What is a Bookmarklet?
If you dragged the Bookmarklet button to your bookmark bar, you can click on it when you visit any website. So you can quickly and easily shrink the domain you are visiting.
Then the next time you want to create a shortened link, just visit the web page and click the 'Create Short Url' button.
Browser Twitter Bookmarklet
You can also post short urls straight from your browser toolbar to Twitter.