This phrase originated around the early 1900's. It is used to say that something happened in the past and is no longer important or worth arguing about. We had our differences in the past, but that's all water under the bridge now.
Smaller container with some items to trade. If you take something, leave something. Please return the cache in a similar fashion as you found it. You will need a pen to sign the log. Take a moment to breathe in the beauty of nature. Happy Caching!