Convert Upper Case to Lower Case Text (and Vice Versa)

Few things are more annoying than reading text that is ALL IN UPPERCASE, but with the help of text transformation tools, we can instantly convert that obnoxious uppercase text into lowercase (or vice versa, if you really want to…).
For the purpose of this example, we’ll use TextEdit. You can either do this with an existing document, or you can just paste a block of text into the app, but we’ll assume you’re working with the entire document, pasted in from an email or otherwise:

• Select all UPPERCASE TEXT in the document by hitting Command+A
• With the text still highlighted, right-click anywhere on the text and navigate to “Transformations” then to “Make Lower Case”

The text casing transformation takes place instantly, and the converted text continues to be highlighted after changing casing. If you want to go the other route, just select “Make Upper Case” instead.
Thinking beyond TextEdit, the text transformations work across Mac OS X in all native cocoa apps, including Safari, iChat, iCal, Mail, Stickies, and any other third party app that included the service.
Similarly, another nifty text transformation in OS X Lion is the ability to convert text to spoken audio for iTunes with just the selection of text and a right-click.