How to Cancel Printing & Print Jobs in Mac OS X

If you’ve ever printed anything from a computer, you’ve inevitably wound up trying to print something that you soon discovered wasn’t needed. Regardless, rather than letting the print job continue and waste ink and paper, the best thing to do is cancel the printers print job or jobs. There are a few ways to cancel printing in Mac OS X, we’ll show you the easiest using a simple printer tool that’s bundled onto all Macs.



If you’ve ever hit “Send” on an iMessage or text message that you wish you could take back, or perhaps you’d just like to cancel a sent picture because it’s stuck on ‘Sending’ and taking forever to send the message due to a congested network connection, then you may find this iPhone “cancel send” trick to be handy. 
iPhone and iPad users can opt to use a new “Filter Unknown Senders” feature in the iOS messaging app which will automatically hush and separate inbound messages that are coming from unrecognized contacts. This is extremely useful if your phone number is publicly listed on a web site like Craigslist, if you’re a public figure, or if you just happen to get a notable amount of inbound messages from numbers you don’t recognize. 

