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A Bluetooth headset that's all signal and no noise, a powerful way to network your computers and the mysterious elixir that wards off jet lag.

Linksys PLK200 PowerLine AV Ethernet Adapter Kit
Power Connection
Linksys PLK200 PowerLine AV Ethernet Adapter Kit
$170, www.linksys.com

TOD KURT
Co-founder, ThingM

Our two SoHo buildings - an office and an electronics and computer lab - are just 100 feet apart. But that didn't make it easy to get them hooked up on the same network. Installing a Cat6 gigabit Ethernet line between the two buildings would be cost-prohibitive. I experimented with different Wi-Fi solutions, but these wireless networks were plagued with interference problems and, ultimately, too slow.

Then I found the Linksys PLK200, which goes over power lines instead of through the air. Installing it was a cinch: I just unplugged the Wi-Fi boxes from the power outlets, replaced them with the PLK200, and connected computers using the included network cables.
Now all the machines can share printing and storage resources, files, and documents at speeds of up to 100 Mbps. The result is a network four times faster than Wi-Fi at a reasonable price - which, for a startup company, is like gold.

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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer.

Morningstar: © 2014 Morningstar, Inc. All Rights Reserved.

Factset: FactSet Research Systems Inc. 2014. All rights reserved.

Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved.

Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor’s Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2014 and/or its affiliates.