If you use Gmail, you can spice it up with this simple tip.

If you find that the plain blue interface in Gmail is kind of boring. You can spice it up by adding a theme which will appear as the background for the email. Just click on the gear icon on the right near the top of the screen and choose "Themes." You can choose from several different colors as well as individual themes.

Under "Custom Themes" you will see a place where you can "Select a background image". This will give you many different options from cityscapes to flowers to animals. In this area, you can even choose your own photo to use.