Many people automatically assume Valentine's Day flowers should be red roses-- and while there's nothing wrong with that romantic flower, it's been done before.
What if you knew how to give your sweetie flowers that showed them how you really felt about them?
This can lead to "shopping around" or constantly comparing alternatives to maximize the benefits or rewards while minimizing costs.
Relationships are also important for their ability to help individuals develop a sense of self.
Some of the spouses simply guessed (e.g.,"Ernie would never use a credit card! Others had to write about a typical day in their partner's life, and then "put themselves in his or her shoes" before predicting (e.g., "Ernie works so hard all day at the bank, and he resents even paying five dollars for lunch; he would never use a credit card.") The result: Those who tried to imagine the other's perspective were less accurate than those who winged it—confirming Epley's real-life experience of giving his dolphin-loving wife a day of caring for the animals at the aquarium, not realizing that, since she'd just had a baby, she would not enjoy the binding, full-body wetsuit.