You may have seen the "PDF…" button lurking in the bottom of a print dialog, and you may have even used it from time to time to create a digital version of a document in a quest to reduce paper. If you haven't noticed it, there's a PDF button in the bottom left corner of the print dialog, so you can print something to PDF instead of having to use ink and paper. Sometimes you just need a PDF, so having this option built in is awesome. What's even more awesome is when you can save some time by creating a keyboard shortcut to do this for you automatically. David Sparks has covered this with the video below. It sounds odd, but trust me, this is the "microwave" of Mac tweaks. At first you'll wonder why you thought you needed it, and in a month you'll wonder how you lived without it. For bonus points, work a little dark magic with Hazel or other automation software and streamline a bunch of busy work so you can spend more time on important things, like your Netflix queue or learning to knit.
Check It Out: How To Create a Mac Keyboard Shortcut For Print To PDF (Video)