3/24/17
It can take several steps to force a window on a Mac to cover the entire screen without using full screen mode. However, this one trick can get you there in a single step.
3/23/17

iMovie: Creating Videos On Your Mac is a complete course with more than 30 videos and 4 hours of instruction that will teach you how to use iMovie to edit your clips together into short films. You’ll learn how to use all of the tools in iMovie such as the precision editor, transitions, titles, backgrounds, overlays and much more.

3/23/17
It can be confusing to try to understand the difference between USB-A, USB-C and other port types and to differentiate that from USB-2, USB-3 and other USB versions. In this video Gary attempts to explain the demystify these terms. Also, learn how USB-C connectors on newer MacBooks are also Thunderbolt 3 ports.
3/22/17
If you use the iPhone's Do Not Disturb function, it can be important to let some people contact you even with Do Not Disturb turned on. Even if you are not using it, or only occasionally use it, you may want to set some contacts so they can contact you at any time in case of an emergency.
3/21/17
You can combine two different techniques in iMovie to create a mirror effect where the same clip is displayed as a mirror image on the left and right.
3/20/17
Two of the most useful adjust controls in Photos are the Shadows and Highlights adjustments. You can bring out detail in dark or bright portions of a photo without changing the rest. An overall light adjustment slider also can bring out the real color of a photo.
3/17/17
You can use the popular Twitter site even if you don't have an account. Without an account you can still see messages posted publicly by others, and search for hashtags and specific news.
3/16/17
When you work with documents in macOS, each time you save you are saving a new version of that document. You can revert to a previous version of that document, or grab some items from a previous version that you may have deleted in your current version. This feature works in all Apple apps and many third-party ones as well.
3/15/17

A little-known trick will allow you to run your Mac's screensaver as a desktop background. You can use this to have an animated desktop, display useful information, or just for fun. It could be useful in situations where you have your Mac just playing music in a shared space and want something more interesting being shown than just a static image.

3/14/17
It can be useful for new Mac users, those switching from Windows, or even experience Mac users to take a tour of the typical Mac keyboard. Learn what modifier keys are called and what they do. Find out about keys that may not always be called the same thing that is printed on them. Learn what some obscure keys are used for.
3/13/17
You can export your voicemail on your iPhone to standard audio files that can be send via email or message, saved to your iCloud Drive, or used in other apps. This can be handy if you want to archive and backup potentially important messages while also keeping your voicemail list clean.
3/10/17
You can use the pen tool to draw on image and PDFs in Preview. Rough shapes and lines will be converted to smooth and perfect shapes and lines, but you can always choose the freehand drawing instead. You can move, resize and change the properties of shapes after you draw them.
3/9/17
If you do a lot of web searching, you may want to use the Safari Snapback feature to jump back to the page of search results. You can also use Safari tabs to keep search results around and load multiple result pages at once.
3/8/17
A good alternative to Photoshop on your Mac is Acorn, an inexpensive but powerful image editor in the Mac App Store. In this tutorial, learn how to cut out a person in one photo and place them in another.
3/7/17

There is no way in Photos to get a list of all of the photos that have no keyword tags applied to them. But with a little JavaScript in Automator you can add this command to Photos and use it with all photos or any selection of photos.