I think everyone knows about the save button in Apple’s Mail.app for saving attachments. I’m also willing to bet that everyone knows that you can turn down the little attachment triangle to reveal the attachments in the email, and then drag and drop them to a folder on your drive. But, did you know that you can easily save all the attachments on an email by just dragging that single little paperclip icon? I didn’t. It works just like dragging the attachments, but it’s a little faster when saving multiple files.
Found via Mac OS X Hints