Did you know that Chattanooga has some of the Little Free Libraries? In geocaching, think Swag with a books, where visitors take books for free, and leave books for others to enjoy.
A Little Free Library is a “take a book, return a book” free book exchange. They come in many shapes and sizes, but the most common version is a small wooden box of books. Anyone may take a book or bring a book to share.
Bring a book to share, and find a cache -- what a great combination!
You are looking for a small lock-n-lock style container about the size of a deck of cards. There is room for small, flat trackables.