Also - you can cache pieces of the template, which is awesome. I have some templates that deliver real-time (date/time sensitive) content in addition to content that is valid for 24 hours.
If you find the wrong content is displayed, you may want to disable content-caching - in site.ini.append.php. I set them as overrides instead of siteaccess - this seemed to avoid problems with the 3.7.3 admin console.