Something I've thought about recently is the large array of hidden chests throughout the world. Long time players know of most of these and I feel that an evening out of that knowledge for newcomers is warranted. This proposed skill would within a x by x area tell you if a chest is nearby. I would not recommend it tell you which direction or any other information only that it exists. The range could start out small and with further development of the skill increase to a max.

Hm...