Good article, all important things to know when starting out. Semi-related I have a question. Does anyone do extensive js caching? I've kind of gotten into the

Good article, all important things to know when starting out. Semi-related I have a question. Does anyone do extensive js caching? I've kind of gotten into the habbit (for highly interactive single pages that would normally have a lot of ajax calls) of loading my page with a start chunk of my dom elements into a hidden div. Then I ajax load the rest and clone the dom/objects saving them in a cache. I've noticed it speeding up my apps (minimizes http request, also clones only occur once) anyone have any thoughts here or better methods?