MCSE at my old work place meant "Minesweeper, Checkers, Solitaire Expert."

An ultra-violet lamp. At night, stoney meteorites have glowing parts with UV light. It is not 100%, but can lead to some geology that is not from the area. Diving equipment if there is a lake in the area. The bottom tells you nothing, but the banks below the water edge have clues to geology from alluvial flow.