Caps Conversion Tools

Below are the list of tools I use in case converting, they are useful if you are on a printing business and your clients just type on whatever case they want :-)

 Notepad++ - converts uppercase -> lowercase and vice versa
Microsoft word - a feature in the format tab

And what I use 99% of the time:
http://www.convertcase.net/ It can convert a paragraph to any of the following: sentence, lower, upper and capitalized case.