If you own a computer, chances are you have some kind of editing program. Whether you already have a program or are just starting out, you might find some of these links useful or even fun.
To achieve fun, creative edits you don't even have to download a program. There are three different websites that you can visit.
http://www.dumpr.net/ has a few interesting things you can do with your pictures. The only work involved for you is to simply upload your pictures.
if you want to be a little more involved in creating your masterpiece you can try http://www.lunapic.com/ or if you're into bling then you'll want to visit http://www.blingee.com/
If you're thinking about going the photoshop route www.adobe.com/downloads is the place to visit first. You can download a free trial of either the latest version of photoshop or elements along with a few other programs. One last option is to visit http://www.getpaint.net/ there you can download paintnet free. I've never used the program myself but from what I read and others have said, it has a lot of the same features that you would find in photoshop.
One final note and an extra plug for http://www.blingee.com/ . If nothing else, you've got to check this website out. When I was checking out all these websites this is the one that I hung out at the longest. They have so many cool things you can add to your pictures.