Let me try to sum up your paper for readers, because it covers a lot of ground. Classical economists used to posit that, since consumers are rational, we make decisions to maximize our pleasure, end of story. But your paper reviews all the ways we know that consumers aren't in fact rational but prone to all sorts of biases and habits that pull us from any strictly rational view of the consumer. Is that alright?
This is a good summary, but I think the final message is that neither the physiology of pleasure nor the methods we use to make choices are as simple or as single-minded as the classical economists thought. A lot of behavior is consistent with pursuit of self-interest, but in novel or ambiguous decision-making environments there is a good chance that our habits will fail us and inconsistencies in the way we process information will undo us.
Choices are good. Trade is good. That's the view of neoclassical consumer theory. But it turns out that people don't really like making decisions. We have habits, we like thinking automatically. So sometimes we avoid making choices altogether because it stresses us out. Why is that? And how might, say, a company use that superior understanding of consumer theory to make consumers behave a certain way?
Trade is a contest, with a chance of coming out on the short end. Animals in "fight or flee" situations often find it safer to flee. Similarly, people in situations where trade is possible, or even promising, may find it safer to turn away. It takes trust to trade. McDonald's is successful because it has created a brand people trust - they know what to expect. A "30-day free trial" or "satisfaction or your money back" or "bring us a better price and we will refund the difference" are offers by merchants intended to promote the idea that they can be trusted, and that the risk of an unsatisfactory trade is low.
Real estate agents take advantage of people's discomfort with decision-making. Since buying a house is highly consequential and difficult to reverse, rational people should look at a great many options and think them through very carefully. A good agent will show you a few houses that are expensive and not very nice, and then one at almost the same price and far nicer. Many buyers will respond by stopping their search and jumping on this bargain. Our susceptibility to "bargains" is one of the cognitive devices we use to simplify choice situations, and one that companies are conscious of when they position their products.
One of the observations that most struck me was "economic choices can make us uncomfortable." That seems like a very powerful idea. How might I see it in my life?
If two "rational" people meet and disagree on the probability of an event (e.g., the AFC team wins the super bowl, the price of Google stock goes up), then both can gain by wagering on the event. In the real world, however, wagering is the exception, not the rule. On the one hand, you could say that getting someone to bet on an event, pay attention to the outcome, and finally make the payoff, is too much work. But actually, if you ask people why they don't bet often with their friends, they will simply say that it would make them uncomfortable to do so.