If you like rational discussions of everyday economics and everyday rationality, read
The Logic of Life
its a pretty new book.
Also:
http://en.wikipedia.org/wiki/List_of_cognitive_biases
I really enjoy blowing people's minds when I thoroughly mention and exemplify correlation vs. causation fuck-ups that they never would have otherwise thought about... Stereotypes are slightly dependent on this mix-up.
A good deal of rationality happens sub-consciously, but a hypothesis of mine (and possibly others, not trying to take credit if its been published before) is that it must be brought out to the conscious in order to be purified and made precise for certain reasons I can go into later.