I drew a map in the paint program, marking vehicle trails, food plots, etc. use a cross to indicate a rub and a box for a scrape. Mark deer sightings on it, too. I only hunt on 100 acres, so it isn' t too hard to make a map of the timber and fields. I use this map a lot for scouting before the season starts. I carry it in the field so I remember what i find. If I mess it up, just print another.
I made a little pocket ledger in Excel to record each hunting trip. It has a place for the date/time, conditions, rain/cloudy/sun and temp. wind, etc. Mark down sightings, shots taken, etc. I find I forget some things if I don' t record them as it happens while on stand. Number my stands, name my plots, etc.
Russ