This might have been covered before but I can't locate any reference to it.
I have often seen cache logs where the finder talks (brags?) about having found 5, 6, or even 7 different types of cache in a day. Are there caches out there (I hate to use the word "challenge") where you need many different types of find to be able to submit your log?
I've heard about the 365-day caches, and other fill-the-matrix caches.
And while I have your attention
, what's up with the "find a cache on its birthdate" concept? I can't recall ever seeing that requirement on a cache page.