As a fairly new OS X user, I love reading about and discovering new tricks. This post has some good ones, including:
If you highlight text in an application and click and drag that to a folder or to the desktop, the text is turned into a file. These are called text clippings, and they will take their filename from the first few words of the excerpt. If there’s any formatting applied to the text, it will be saved too. This is an excellent way of filing away anything you’ve had to edit out of a document but want to keep for other purposes.