4 ms·I reuse Amazon boxes, and now I feel vindicated that I always fully obscure the old bar codes.by AmVess 7y agoI reuse Amazon boxes, and now I feel vindicated that I always fully obscure the old bar codes.Domenic_S 7y agoDon't need to fully obscure them, just draw a single vertical line through them to make them unscannable!epse 7y agoIf your line isn't big enough, it might not make a difference due to error correction