There's a little app built into Windows 10 that you might not know is there, or have just skipped over without more than a passing glance: Sticky Notes. But, this simple app can be a powerful reminder tool to help you plan your day.

Imagine your monitor filled with Post-It notes and you're about understanding Sticky Notes.

It doesn't do a lot, but what it does it does well. It lets you make notes that are so clearly visible on your screen that you'll not be able to ignore them. Here's what you need to know.

1. Launching the app

The first part of using Sticky Notes is knowing where to find it. The quickest way to do this is to use Cortana and just type "Sticky Notes" into the search box or to use voice commands to launch it by saying "Hey Cortana, launch Sticky Notes."

If you want to find it in the Start Menu, open it up, hit "All Apps" then scroll down to "Windows Accessories." Sticky Notes lives within this folder.

2. Adding new notes

When you launch the app for the first time it'll present you with a yellow square resembling the popular sticky notes. These aren't designed for detailed note taking, you're better of with something like OneNote for that still. These are for quick reminders you need throughout out the day, so keep them concise.

Once you've left one note, adding another is easy. Hit the small "+" in the top left and another yellow square will appear. Just keep repeating until you've got enough. Or you can right click on the icon in the taskbar and then "new note," or use the keyboard shortcut "Ctrl + N."

You need to keep the app open for your notes to remain on the screen.

3. Placement

As with traditional sticky notes you can put these little guys all over the place. You can pick them up and move them around the full expanse of your display. Just drag, and drop. Click on the slightly darker yellow strip and the top and go sticking them wherever you want them.

4. Customize

You're given yellow by default. But you don't have to stick to that. Right click on any of your notes and you can change the color to a variety of presets. This is particularly handy if you want to make certain notes stand out or just group like topics by color.

5. Cleaning up the mess

Once you're done with a note, getting rid of it is easy. You can either just click the small "x" or use the keyboard shortcut "Ctrl + D." You'll get a dialog message to check you're sure you want to delete, but otherwise your screen will start to empty.

Sticky Notes is a very simple application that is easily overlooked. But if you just want to keep a quick reminder close at hand, why not give it a try.