Argos was originally a promotional scheme called "Green Shield Stamps", whereby you could only buy things from them via stamps, which were a perk of buying othe

Argos was originally a promotional scheme called "Green Shield Stamps", whereby you could only buy things from them via stamps, which were a perk of buying other things at other retailers: https://en.wikipedia.org/wiki/Green_Shield_Stamps https://en.wikipedia.org/wiki/Green_Shield_Stamps