The last flight thing is one hundred percent true. Every one of my crashes was a result of cramming in just one more flight. It makes sense, though: You are in a rush to leave, you are thinking of other things, you are at the point of total confidence (read: cockiness)  and by this time you have been sitting under the sun for a few hours.

Even worse than putting the glow driver in your pocket with keys? Putting a LiPo in your pocket with keys!

Oh - And Never EVER fly a new model (after spending four months building it) without taking a photo first, especially if you have promised to show it to a prospective RC pilot after that days flying session! (Or they will end up driving RC cars instead...)