I have told it not to cache my home page (http://www.bellingham.org) because the main header image and the "Things to Do" blocks are designed to change with every page load.
The header image changed dynamically with the is_home and is_front_page caching off, but the "Things to Do" items are static. Turning off the caching completely returns them to normal.
How do I keep it from caching ALL of the page?