I modified this image on Fotoflexor, using the "posterize" function. What I like about that is you can control the amount of posterizing with a lever and condense it down to just a couple of colors, or use it just a hair for kind of a unique and artsy look.
Now there's a collage application on Pixlr, which is the free website I use for photo editing and special effects. They have any number of fun ways to make your photos cool. Here's a picture of me from a camping trip this summer, with my lines magically disappeared!
We visited Bob's oldest son Brad and his girlfriend Shannon in western Montana for a few days, and thoroughly enjoyed the gorgeous scenery around Missoula and Butte. We hiked up to Storm Lake out of Anaconda and were pleasantly surprised by the 70 degree weather. It was a rough 4-wheel ride up to the trailhead itself, and then about 2 1/2 hours up and back to the peak (above treeline)!! I was taking photo after photo out of the car window - so knocked out by the soft fall light and the leaves turning.