What about Man vs. Time?
Martin Beebee asked: What about Man vs. Time? How does that fit in here? I'm thinking (very specifically) about a story of a couple who goes to the country for the weekend, but is in conflict with the short amount of time they have, and ultimately faced with the decision about whether to go home or (buy a house) and stay. So is the conflict with time, or with one of the other Big Six? And if so, which one?
In this case, I would suggest that the story of the couple is actually Man vs. Self. There's an internal decision that they have to make between their conflicting desires to go home or to stay. The conflict really takes place in the characters' minds.