These rules of thumb popped up on Latitude 47, the official Geocaching.com blog, and I thought they were humorous enough to share!
1- No matter how much advance research you do, the cache will be on the other side.
2- Any references to water/swamps/mosquitoes/tics in a cache’s description or log entries should be believed.
3- Always take the official bushwhacking distance and multiply by 3.62.
4- Waterproof footwear isn’t waterproof — unless the water is already inside.
5- You are allergic to some form of plant life; you just don’t know which one yet.
6- Always carry spare batteries, always.
7- If something looks out-of-place for the locale, it could be the cache.
8- If something looks absolutely authentic for the locale, it could be the cache.
9- Sometimes you have to just trust the instruments; at other times go with your experience and instinct. The trick is figuring out which approach to use for THIS cache.
10- Excessive coffee drinking does not go well with caching.

