Did you know you can upload a shiny 1200 x 600 pixel image to become your new Twitter header to improve your Twitter.com profile page? Doing so is pretty simple.
- Prepare an image (1200 x 600 pixels) in png or jpeg format
- Visit https://twitter.com/settings/design
- Click the "Change Header" button
- Upload your image
- Visit your profile page e.g. https://twitter.com/pdjohnson for @pdjohnson