Day 1: - Radical Math

1 - Bank cards, issued by banks (for example, Visa, MasterCard and Discover Card) 2 - Travel and entertainment (T&E) cards, such as American Express and Diners Club . 3 - House cards that are good only in one chain of stores (Sears is the biggest one of these, followed by the oil companies, phone companies and local department stores.) ................
................