Receipts, read closely.

Most items go on sale eventually. A surprising share go on sale within a month of your order — and almost nobody collects the difference.

Price matching gets the headlines; price adjustment is where the money is. What Walmart, Best Buy, Target and Amazon will actually do after you’ve paid.

Prime Day and Black Friday are the loud ones. Most price drops are quiet, mid-cycle, and entirely unannounced — here’s the rhythm.