How Do You Know a Shopping Bonus Is Actually Good?
Written up in October 2026. Dates are when I actually built it. Airline shopping portals love to scream “5X POINTS!!!” at you. Is that a great rate, or just a Tuesday? The portal will never tell you, because it only shows you today. So I built a tracker that remembers. Code’s here. The data model is the whole project I put everything in Cloudflare D1 (SQLite) and spent most of my time on the schema, because the questions I wanted to answer (“is this an all-time high?
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