This talk covers some simple and advanced techniques that designers, developers and system administrators can use to squeeze every last drop of real (and perceived) front-end performance out of WebGUI. YSlow will be introduced as an indispensable tool for effortlessly identifying performance bottlenecks. Starting with the default, out-of-the-box WebGUI site, we will step our way through YSlow's recommendations to see how close we can get to a perfect score of 100/100. Along the way Patrick explain the concepts behind each rule, how WebGUI helps (and sometimes hinders) our quest for ultimate YSlow glory, and how a little Macro called ^Build() can do most of the work for us.