Back up! Back up! Back up!
That's the mantra around the She's Wired office when it comes to desktops, laptops, iPads, and iPhones.
Backing up your computer before you upgrade to Mojave allows you to feel more confident that your "stuff," photos in particular, will not disappear. You never know when an upgrade will go wrong. By backing up before an upgrade, you ensure you have your stuff safely tucked away on your computer.
Take 5 minutes to back up before you tap the install button. Your documents, audio, videos and photos will thank you.