I write the distance from the next way point in the right margin. Also do this for ToD. As has been said, you should always know exactly where you are even without a GPS. Then when you depart and you get your log happening you'll know what time these events will occur.
Eg. ML 135.25 YORG -35, 04 (Station, Freq, WPT, distance out, ETA)
YORG TOD -17, 16