2 instant black coffee's to start the day and then water, Gatorade or tang through the day and then a whiskey sour (whiskey, filtered lake water and a squirt of mio lemonade) to sip on in the evening. Rest days call for more coffee.
As a young child, I wanted to be an astronaut. I stirred the orange powder into a glass of water at every meal, believing Tang was the only acceptable spaceman beverage. I weaned myself off the Tang tit in the early 70's, at the end of the Apollo program, when it became clear that NASA would not come calling. I continued however, to portion small packets of the powder into my backpacking meals. Journeys into the wilderness were my substitute for the space voyage that would never be.
Real, black coffee. Cowboy or Pressed. I have never had an acceptable experience with instant coffee. I have yet to try Starbucks Via.
After that it's water and bourbon. Occasionally Canadian instead of bourbon. I do normally carry a selection of the crystal-light style flavored packets that get the nod when locally-sourced water is intolerable. I will throw in a couple hot cocoa packets during the shoulder seasons and prepare them after the evening meal if the bourbon isn't warming me up enough.
Could have been worse; on one trip last year my companion purchased a pound of decaf for the week.