First go to:
Now, scroll down until you see "Try It! Drag and Drop Image Here."
Drag and drop your picture!
Wait for it to finish burning the background.
Choose the best thumbnail result.
If it's perfect, click Select. If it's not, click Touch Up!
How To Touch Up:
Just put red where DON'T want something, and put green where you DO. Easy!!!
BEST THING ABOUT THIS: NO DOWNLOAD OR INSTALLING NEEDED! JUST DRAG, DROP, TOUCH UP, AND WA-LLA!
Here's proof it works:
Okay, if you're not really the reading-instructions type girl, look at this video.