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By Pauline Askin SYDNEY (REUTERS) - In the pristine frozen continent of Antarctica scientists fear an alien invasion -- not from outer space, but carried in people's pockets and bags. Seeds and plants accidentally brought to Antarctica by tourists and scientists may introduce alien plant species which could threaten the survival of native plants in the finely balanced ecosystem. Invasive alien plants are amongst the most significant conservation threat to Antarctica, especially as climate change warms the ice continent, said a report in the Proceedings of the National Academy of Sciences Journal published on Tuesday.

Cliff Schertz decided that Mexico was a better spot than India to locate his software start-up. Here's how he got it going in record time.

"Private reserve"?

%excerpt% Read more: How I Did It: Tumi’s Charlie Clifford

Handmade in Italy and about $1,000 bucks each, these bags are not toys. Which makes them all the more fun to play with. Italian designer Mariasole Cecchi designed these peculiar objets one bored evening in Paris, using just a box of Legos, an old bag and some glue.

It's a dirty business, but searching a rival's trash is generally legal—as long as it does not involve trespassing on private property or taking the bags before they hit the curb, according to Richard Horowitz, a lawyer who works with Strategic and Competitive Intelligence Professionals, an industry group. In fact, there are best practices associated with Dumpster diving, according to J.J. Gradoni, a private investigator in Houston.