One is, barcodes are a green solution.
Look at the amount of paper saved if you DID NOT have to keep printing flyers, or directions, or user manuals for the stereo system you bought. They scan the code and read it on their phone, or store it for later.
Business cards will be plastic, scanned into a smartphone and stored; no more forgetting your business card.
What if you are visiting your grandma and see the baffling array of prescriptions and ointments? Ack! But not a problem if you
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