After removing all the extra HTTP requests you possibly can from your waterfall, it’s time to make sure that those that are left are as small as they can be. Not only this makes your pages load faster, but it also helps you save on the bandwidth bill. Your weapons for fighting overweight component include: compression and minification of text-based files such as scripts and styles, recompression of some downloadable files, and zero-body components. (A follow-up post will talk about optimizing images.)

via phpied.com