Ever wonder how to turn on caps lock on your iPhone? If you're like me, sometimes you want to type a whole word in capitals - or several words - and tapping the shift arrow before every letter can become annoying.

Well there's a way to turn on caps lock while you're typing, but you have to enable it from iOS settings first. Here's the path:

Settings > General > Keyboard > Enable Caps Lock.

Now, when you are typing with the keyboard, you can double-tap the shift arrow and it will stay on capitals.

Boom. Happy mobile typing.