Do you use the Windows Key?
Here are some useful Keyboard Shortcuts for Windows 10
Most keyboards have the Windows key near the Ctrl key
If you tap the Windows key it opens the Start Menu (press the Windows key again to close the Start Menu)
However you can use the technique of holding down the Windows key whilst you tap another key. So for example...
1. Hold down the Windows key on your keyboard with one finger
2. Whilst continuing to hold down the Windows key just tap the D key like this...
3. This will instantly show you the Desktop (minimising all windows in one go without closing them)
Here are some more useful shortcuts using the Windows key: