I actually wrote an article on this very same topic a while ago -> http://www.observingcasually.com/favorite-wordpress-plugins/

I used WP Greetbox for a while, but it didn’t seem to be achieving a great conversion rate, and it just seemed to make the screen too busy.

You’re making me think about cache buster and login lockdown.
.-= Kosmo @ The Casual Observer´s last blog ..Rockies vs. Phillies – The Philly Perspective =-.