Customize Your Web!

Customize Your Web (CYW) let's you customize your favorite websites with just a few clicks. What Greasemonkey is for developers is CYW for non-developers. You can remove/rearrange /modify elements, add keyboard shortcuts and do many other things. More advanced users will also be able to insert javascript, or even re-style the CSS of any webpage they like. You can also add keyboard navigation or auto-executing macros.

 

Even though on it's webpage it says that Customize Your Web is only available for Windows users, I've installed it on Linux and it works!