I just log each hunt in my google calendar which is where the rest of my life is organized anyway. I just color code it so it sticks out and type in the basics of the hunt (locations, deer encounters, weather, etc) It has really helped me see when the pre-rut, rut, and all those phases start in my area. I look back and saw every year I kill deer back to back on 11/19 and 11/20. now I just make sure I am in the woods in my great spots those days. its working so far. I would have never realized that if I didn't log it.