WhatsApp is undoubtedly one of the most popular messaging apps out there. It's cross-platform. It provides end-to-end encryption making it a secure option. And with a little hack that Amit Agarwal highlighted, you can use it to send yourself notes, files, and more.

Unlike with iMessage and other messaging apps, you can actually text yourself using WhatsApp -- all you need to do is create a group with no other contacts.

Here's how to do that. Fire up WhatsApp on your phone and on the Chats tab, tap the New Group link in the top right corner. You'll have to first add a participant to the group to actually create it, so select any contact and tap Next.

In the next window, you can give your group a name and then tap the Create button. Go to the group and tap the name at the top of the screen to open up the Group Info. Scroll down to the participant list and remove the one person you had added by tapping their contact name and selecting Remove.

You now have a private WhatsApp group to yourself where you can send yourself files, notes, photos, links, and more.

Why Use WhatsApp to Store Files

By using WhatsApp in this manner, you're killing two birds with one stone. You have a quick note-taking app that's by your side at all times, and you have a seamless way to exchange files between your phone and your computer.

Using WhatsApp's desktop or web version allows you to send files, notes, photos, and more from your computer to your phone and vice versa. You can also record little notes to yourself using WhatsApp's voice memo feature and send them to your computer. And best of all, these notes and files are secure and encrypted.

Now that's not to say that it doesn't have its drawbacks. This hack is great for random notes, but without being able to search or organize your messages in any way, it's not going to be something you'll want to use beyond quick ideas or exchanging files between your phone and computer.

If you need a robust note-taking app with some serious organizational features, but still want to keep it simple, you could give OneNote or Google Keep a try.

What's your preferred method to send files between your phone and computer? Let us know in the comments.