Geoff,
I posted a few comments on last thread. As its lost
One thig i did not mention last time is a have used a Tape recorder, you know those small ones you can use a meetings
You can make a quick comment on tape on what you see then later on record it on computer or whatever.
Also i have found a small note pad and pencil very handy out in the field.
Hope that helps and look foward to observing togeather again some time
Best.