Clippings is a superhandy Firefox browser extension that allows you to easily paste text from a list of saved clipboards. It may sound boring, but using Clippings for Web forms and multiple e-mail signatures lets you complete those tasks more quickly, saving your keystrokes for something more important, such as actual communication.
Clippings installs as a contextual menu. Right-clicking an empty form or writing area lets you select a saved snippet from your clipboard. It took me only a minute or two to set up a fairly extensive list of commonly used entries.
The big question: How is Clippings better than your browser's autofill feature? For one, it's far less clunky. I'm constantly finding myself erasing autofill when dealing with address forms and Web site log-ins on shared computers. Likewise, I use multiple e-mail signatures, which Gmail simply can't handle. For some things autofill is enough, but if you're juggling multiple addresses and filling out a lot of forms, Clippings might be a big help