QC checklist
What photos can—and cannot—tell you
A practical checklist for labels, colour, visible construction, measurements and missing information.
Research articles
Evidence first, then a practical decision.
The first published guide uses public USFans platform information, separates a platform feature from a guarantee, and keeps every product action on FindSpreadsheet.
Published guide · 2026
USFans QC and parcel planning: a practical guide
A 14-part, fact-led walkthrough from a marketplace listing to warehouse photos, route selection and tracking.
Shipping planning
Why a product price is not a final cost
Destination, parcel dimensions, route choice, packing and customs conditions all affect the final stage.