I just installed this tool on my wife's laptop and it has made my life a lot easier. I thought that it would help out some of the folks here too that are having a difficult time resizing photos so that they can upload them to the forum.
It woks very simply. After you have installed the tool, when you right-click on a picture file you will now see an option that says "Resize Pictures". It then gives you the options of Small, Medium, Large, Handheld or Custom. If will then create a copy of the original picture resized to your specifications.
It works well, is always available and you don't need to learn a new application.
Image Resizer
This PowerToy enables you to resize one or many image files with a right-click.