I'm surprised Wordpress haven't built caching into the platform yet. wp super cache will fix your problem, though.
Re:Wireframing, UX and Web apps
by destraynor on Wednesday March 16, 2011 @11:56AM
(#2332523)
It's WP - thanks for the tip, will investigate.
Can't see what your running, but if you use WordPress, just install WP Super Cache instead of (or in addition to) everything in my article ;)