Oshima aims to more than double the chain-to 2, 000 shops-over the next three years via new franchises and company-owned outlets, including those inside supermarket and discount chains.

FORBES: "Everyone said I would fail"

He said the chain will double its number of clinics to 1, 060 by 2015, adding 100 locations per year.

FORBES: CVS Earnings Are Weak: But Are Retail Clinics Making A Comeback?

The rusty iron chain that double-locked the cart to the front wheels of the cycle began to squeal as he rode.

NEWYORKER: The Elephant

The chain plans to double that number to 300 over the next three years.

FORBES: Pizza Anyone?

CVS, America's second-biggest pharmacy chain, recently bought the MinuteClinic chain and now plans to double the number of clinics in its stores to perhaps 300 this year.

ECONOMIST: ��Convenient care�� clinics are taking off

Shen expects to double the number of inns he runs next year and is exploring a new chain of hotels with even smaller, cheaper rooms.

FORBES: The Bed Business

Subtract the patronage checks and you still have a pretax margin of 4.5%, almost double that of Sports Authority, a publicly traded U.S. sporting goods chain.

FORBES: Backpackers meet the bottom line

Halfords has sold double the volume over the last two months compared to the same time last year, while supermarket chain Asda reported a 387% year-on-year surge of all types of car seats.

BBC: Three children in car seats

Those revenues could easily double, he figures, if he can get into Guitar Center, the nation's largest musical-instrument chain, with 130 stores.

FORBES: His Own Beat