One tracking tag for everything blinds you to your best placement

One tracking tag for everything blinds you to your best placement
The mistake: using the same Associates tracking ID across all links, so the dashboard can't tell you where money comes from.
— With per-placement subtags (e.g. -intable, -sidebar, -intro): you learn in-content links earn EPC ≈ $0.38 vs sidebar ≈ $0.07, n=8,000 clicks
— With one tag: you only see a blended $0.22 and optimize nothing
Amazon allows up to 100 tracking IDs per account — free.
Fix: create subtags per placement and per page type; review them monthly.
So what: you can't kill your $0.07 sidebar widget if every link reports as one number.