Most Mac users know that you can create a PDF from just about any document, through the print dialogue box. But, have you ever looked further down on that same menu? you can actually email a PDF file without having to save it first.
With a document open, just hit print, and then select Mail PDF from the PDF pull-down menu. A new email will be created with a PDF attachment ready to send out. This is a great option for times when you don’t actually need a PDF copy for yourself, but you do need to send it to someone else. It saves you the steps of saving the file, and then deleting it after you’ve sent it.