What informs your economic behavior and how it changes in response to additional information. Will an app change your habits? Does understanding a topic more deeply influence your choices about consumption and savings? What are the strongest motivators to you when deciding when and how much to spend vs saving your money? What kinds of purchases motivate you to work harder for more money (or ask harder- from your parents, launching a kickstarter-type ask, etc.)
What I want you to really think about is the social aspect of the economy. No matter how much you can buy without ever having to get dressed and go outside these days, the economic marketplace is a fundamentally social space: you buy and sell to other people for reasons often influenced by other people.