I use L337 from time-to-time for my passwords. Whereas it makes for a strong password, it's sometimes a real pain in the butt to type in L337. So to make things a little easier, I created a Windows Sidebar Gadget to convert plain text to L337 for use in passwords.

You can download the project here.

To make a Gadget package, simply zip the project files (minus the Properties, bin, & obj folders and the *.csproj* files) and rename the extension to ".gadget". I included a Gadget installation package in the solution folder.

Enjoy!