Lotion:
-So far, the inexpensive Albertsons SP30 suntan lotion (greaseless and non-odor) is working well.  Strategy is to apply at home, so I can see what I’m doing in the mirror.  I then re-apply twice during the day.  Key, for me, is to pretend I’m washing my face and neck — that way, I get the lotion everywhere I need.  
Water
-Was really hot today (close to 100) and predominantly not in the shade.  Also, was clambering up on top of military vehicles.  Needed to suck down a lot of water — at one point it was several pints bottles within one hour.  Must have needed, because only went to bathroom once during the day.  I keep forgetting to take the electrolyte stuff I bought.  
FREDI Location
-The lesson is that nobody will place a device exactly where you actually need it. I’m resolved to now just relocate, if I can, any device that’s obviously in a non-convenient location, and that won’t disturb any installation.  That will avoid expending energy getting frustrated.  
Tactical Nav
-I’m not the primary in using this app, so I’m just using it for my own purposes.  I’ve found that it’s really accurate.  One thing is to ensure I save any new waypoints because if I quit out of the app then I lose the input.  Also, I have to ensure I’m in the correct folder before creating a waypoint — XCTC folder. 
Map Reading and Land Navigation
 -I saw a group of soldiers laying out on the ground what looked like a map of an engagement.  They were quite creative with pieces of cardboard and twigs, to create the overall visual.  This is a file for Map Reading and Land Navigation, by the military — here for reference, as I don’t see needing this right now.