Add text labels to toolbar buttons, making them easier to identify & easier to click on (because they're bigger). Works in Finder, Preview, Mail, and more.
Apple hides your Library folder because they don't want you accidentally messing it up. When you have to get into it, use the Option key and the Go menu.
Switch between the Finder's icon and list views with simple keyboard shortcuts. What could be easier than Command-1 and Command-2?
Most people work harder than they have to where web browsing is concerned. Here are two time-saving tips to help you in Safari, Chrome, and Firefox.
Command-Shift-3 takes a picture of the entire screen. Command-Shift-4 takes a picture of whatever you draw a box around. There are other options too!
Make your own shortcuts for text you type a lot. Boilerplate text, phone numbers, email addresses, website addresses-- these are great candidates.
When browsing web pages, tapping the spacebar scrolls you down one screenful. Shift-spacebar scrolls you back up. This works in Safari, Firefox, and Chrome. Way easier than using the mouse or trackpad.
Save time by using the keyboard to navigate Mac dialog boxes, rather than the mouse. Try it a few times and you'll be hooked.