But buying a unit or condo resale is probably best.

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Ecomagination also means selling more windmills, a controversial business where GE pushed itself into second place behind Denmark's Vestas Wind Systems by buying an Enron unit in 2002.

FORBES: On The Cover/Top Stories

UK-based computer chip designer Imagination Technologies is buying US central processing unit (CPU) architect Mips's business operations and some of its patents.

BBC: Imagination challenges ARM with Mips takeover

This unit also includes the buying, selling and transporting of crude oil and petroleum products.

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In a much-need spot of car-making consolidation, Daewoo , the fourth-largest chaebol, said it was buying the debt-laden car unit of Ssangyong , another conglomerate, for an undisclosed sum.

ECONOMIST: Retrenching

Carlsberg got more than 29% of its revenue from its Eastern European and Russian businesses in 2011, and said buying the remaining shares in its Russian unit would immediately boost profits.

BBC: A Carlsberg sign

It is also buying 145 towed artillery guns from the U.S. unit of U.K-based BAE Systems PLC.

WSJ: India, Boeing in Talks for Helicopter Deals

Alternatively, if your space and budget permit, you could investigate buying in bulk from vendors in order to lower your per unit cost.

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The Korean carmaker is bucking decades of automotive history by tapping its Hyundai Steel unit to produce virgin steel for cars rather than buying it from suppliers.

FORBES: Magazine Article

"There's clearly been a rapid appreciation in residential land values, but at the same time you've got to keep reminding yourself that you're buying a nonperforming loan, " says Curt Bailey, president of Related Midwest, a unit of Stephen Ross's Related Cos. that has expressed interest in the site.

WSJ: Plots & Ploys: Hole-Sale Real Estate