70% my online users are Guests (not logged in), all pages for guests are the same. But each page need 10 queries or more so they waste server resource. I want to paid for a Caching Addon to cache pages for guests (normally from 1 - 5 minutes). When a guest open a page, the addon will save whole page in html. And next guest open it, the addon just read html from Cache system (like memcached) and display it. No query need to display cached pages.