First, great job on this useful script. I was wondering how you would envision this being run daily to keep the html "fresh". I was thinking of setting this up in a cron job on our web server to run every morning. But I'm unclear on if I'd need to delete and recheck out the code each day? What's stored in the cache file? Guessing it would need to stick around from run to run.
Any tips you could provide would be appreciated.