Background images make pages look good, but also make them slower.
Each background image is an extra HTTP request.
There's a fix: combine background images into a CSS sprite.
But creating sprites is hard, requiring arcane knowledge and lots of trial and error.
SpriteMe removes the hassles with the click of a button.
Try it on this page:
Install SpriteMe by dragging this link to your bookmark toolbar or right-click to add it to your favorites: