Hot keys can save you a ton of time and a ton of mouse clicks but it can be difficult to remember all of the different hot keys that are available to you in Google apps.  Jessica Twomey and Christine Pinto from Innovating Play have put together a fun little slide deck that gives many of the commonly used hot key patterns using a fun mnemonic device.  This slide deck is great for teachers (even if it is a little "elementary") but it would also be great to share with students!