Free: Contests & Raffles.
I like to bring "just enough" water to make it through and either hope to stumble into some in the course of my normal hunting day or hike down to resupply if I don't. Realistically what it means for me is I don't drink enough water or do any washing and my rehydrated meals are all a little dry.
All good ideas. I'm good with not having coffee, but that could be a deal breaker for some people in our group!