excellent ideas man not sure how to work out the energy thing, but i'll taqke a look at coffee-related codes and see about the energy drinks! Maybe just make you less tired??
Maybe a chest carrier or whatever it's called. Here's a picture... http://www.imagic.pl/files//17977/nike%20nerka%20czarna%201.JPG (don't worry about any viruses) Any way good job and keep it up.