Write a feature-driven guide that follows a single thrift flip from cart to profit, using the Seattle Goodwill Outlet as your case study. Start with a vivid scene of filling a $34 cart, then explain how you evaluate items for resale, including cleaning and minor repairs. Integrate a concise explanation of the economics behind thrift pricing, margins, and time trade-offs, illustrated with quick calculations. Weave in a brief educational tangent on the economics and psychology of thrift—why bargains feel like value and how perception shapes demand. Conclude with practical tips and a simple checklist readers can use for their own flips.