Why use one?
It stores a normal .vcf contact. One scan beats reading your details aloud or typing them from a business card.
Format
vCard 3.0: work / cell / fax lines, structured address, safe handling of commas in your fields. Long cards are folded to spec.
Ideas
- Events: badge, lanyard, table tent
- Email footer or last slide of a deck
- Back of a printed business card