Put text along a path or circle, warped/fuzzy characters, drop shadows.
Learn how to create a simple paper folder with a document inside.
Learn how to make simple rain drops on a picture surface.
Learn to make an image that looks like a post-it note.
Make a button with shadows that looks 3D and has your text on it.
Learn how to brighten the darker areas of a photo without brightening the entire photo.
This tutorial uses layers and layer mask.