I been unable to answer this little question for myself, therefore you guys are my next NA after R&D ended.
Since I start in GTD, I have been able to acomplish more things, be more productive, and acomplish more. The problem I have is that I hit an exausted stage at the end of the afternoon.
Before GTD that was the stage after 15-16 working hours, now is just after 8 or 9 hours. Yes I acomplish now more in 9 hours that what I use to do in 15-16 but around that time I am preatty much useless, I do not have the energy to do anything else, sometimes I can close everything go home and work at home for a little bit more (an hour or so) but sometimes since I get to work early (yes that is my delicious time, from 7 to 8 before people show up) I cannot leave that early, especially since I do not feel right leaving before my subordinates, no matter that I get here early.
I have been trying to find a way to boost my energy; I take a short lunch, since because of the time difference I can rarely be able to contact custumers after 4.
Is there any trick, (maybe this is not tottally GTD related, but I feel that many of us have been getting the same effect) you people do to boost your energy in the afternoon... to crawl in that last mile... to give the last push?
Or is a personal thing, and I need to understand that after energy is gone is gone...