I thought you were talking about logging property. I call it a hunting journal and yes I do and very detailed since I been hunting, especially in the past 5 years, its intresting in reading about the past trips and weather conditions as well as elk/deer movement at different times of the year and moon phases coming into play. Also when the Game/Fish Dept calls you at the end of the year, you can tell them the exact man hours you have assiociated with that game specie and ect. Bobby