I know some churches that totally change their stage about every 2 months or so, some with every new series to reflect the "big idea" of the series. That's not easily done for us at our church. :) But I do like to change our online presence every so often. Which is what I'm doing now. I love working on websites. My goal is to create a site that serves as a vital part of our overall ministry.
Check it out here
Keep in mind it's not finished :)