Sometimes it can feel like we don’t have a lot of power to make the economy a fairer place. A few dozen large corporations control most of what we buy, and it can feel impossible to demand change when things go wrong. Marta Tellado, president and CEO of Consumer Reports, wants to put the power back in consumers’ hands. She tells us about the predatory business practices we should all be aware of, how we can protect ourselves, and why it’s important to take collective action. In Mailbag, we answer questions about 529s and disability insurance. In Thrive, how to go green during the holidays.