When you are running on battery power, this setting can really help save energy when you are surfing the internet using Safari.
Here's how to choose what Spotlight returns when you do a search of your computer.
Choose what icons you want on the right side of your computer menu bar.
Here's a place where you can keep a cheat sheet for your computer.
Here's a really easy way to keep a running grocery list in reminders that you can use every time you go to the store.