Which keyboard shortcuts do you use most often?
A tutorial on correcting exposure using Auto White on photos.
<Image> Colors > Auto > White Balance
Using smudge tool to create a feathered look.
This tutorial shows how you can create straight lines by simply using the shift key.
Skip to step #2
This video shows to use Gimp's standard red eye removal filter.
This tutorial uses Quick Mask to easily create a wavy, faded, pixelated, or other picture border.
This tutorial shows how to draw a box that has 3D shading.
Learn how to create custom paths and selections.
Scroll down to the section "Change the Size of an Image (Scale)" on this webpage:
<Image> Image > Scale Image
Scroll down to the section "Make jpegs Smaller" on this webpage:
<Image> File > Save As