How many old emails are collecting dust in your inbox? Some folks have thousands. When you have that many, it's easy to put off cleaning up your inbox — it seems like a long and laborious task. But it doesn't have to be.

Scroll through your phone's photo gallery for a reminder of just how many pictures you take. When you have a specific one in mind, you might scroll for minutes and minutes and still never find it. That's why you need to know about this quick trick to locating the picture you're looking for. You don't need to download anything new, either. Ready to find out the secret?

Microsoft will change its default Office font next year. You can prepare for the change now and even play a role in the company's future by picking what it should look like. (This is the first time Microsoft Office will change its default font in 15 years!)

Warning: Shady apps could be spying on you and using your camera and microphone without your knowledge. If you're not sure this is happening to you, it's time to find out. There's a little-known app that can identify the culprits so you can get rid of them and rest easy.

Bitcoin is going mainstream. You can buy a Tesla with it or use it to pay for goods on PayPal. And guess who else is noticing? Good old Uncle Sam — and he wants his cut.