Aldi is poised for a growth surge in the United States, according to The Wall Street Journal. There are currently about 1,000 store locations throughout the country.

Clark's beloved hard discounter is so powerful that they were able to send Wal-Mart home with tail between legs when the latter tried to enter Aldi's home market of Germany. The ultra-cheap chain now has estimated annual sales of $7 billion.

Shoppers can save up to 40% off traditional supermarket prices at Aldi. But beware that the shopping experience may not be for everyone. The stores are about the size of a neighborhood chain drugstore; they have limited hours; there are no grocery bags; many only take cash, while other may accept select debit cards -- but no credit cards; and you can usually count on long lines, small aisles and limited selection.

Private labels are king at Aldi. In a Howard family taste test, everyone preferred Aldi's Oreo Double Stuff imitation to the real deal. And the best part of all? It cost one-third less than the Oreo product!