Shortcut to Blank Slides in PowerPoint
The typical way to do this is to point your mouse to "Insert," click on "Insert New Slide" and then choose a format.
If the format remains the same, as it does in many PowerPoint presentations, here is a nifty shortcut.
You can simply insert a blank slide by holding down the [Shift] key and clicking the Insert New Slide icon on your toolbar. By doing this, you bypass the New Slide dialog box. If the icon is not already on the toolbar, click on Add/Remove Buttons and add it to your screen.