starting to get nervous about all this. I tend to use food/drinks as a reward for myself. now that I realize that for at least a week there can be no spur-of-the-moment convenient purchases of treats (none of my current frequent haunts/work locations are within a quarter-mile, or maybe even a half-mile, of a grocery store, never mind the fact that hot coffee is not a food-stamp item), I am starting to care.
I will have to tote around plenty of tea bags and Emer-gen-C so I don't become obsessed with the idea of buying a cup of coffee, because even though I can easily go a week without coffee, it will be forbidden fruit, and then I won't be able to stop thinking about having some.
Even thinking about this experiment is revealing a hell of a lot of weird behaviors and thought patterns I have about food, health, taking care of myself, and being satisfied. I'm sure there's lots more to come.