If you don't want others to use your photos and images without your permission, you can create a so called custom watermark with your name or any other text you want.
Mail merge is one of the most useful features of Microsoft Word when wanting to send personalized letters, documents or e-mails to people you have stored in an Excel sheet. Let me show you how to use it.
You created your own movie in iMovie but you can't figure it out how to save the darn thing into a playable .mp4 file on your hard drive. I've been there, let me show you how to do that.
You don't need Photoshop or some other advanced piece of software to resize a large number of images at once. You can use Microsoft Office Picture Manager which is part of the Office suite.
I will show you how to enable desktop notifications, so you will notice a new email, even if you are not in the window where you have your Gmail account open.