Portable Pen For All Environments: The Inka Pen

The Inka Pen attaches to a keyring and has a lightweight, stainless steel design. Using a pressurized ink cartridge, it writes at any angle, temperature, altitude and even underwater. The pen is made in the U.S. and has a lifetime warranty. Available from Amazon for $11.

20 LED Portable Spotlight

Not bad! Good marks on efficiency and portability. This spotlight has 20 LEDs on a rotating head. It runs up to 200 hours continuously on 3 D-size batteries.You can also plug it into a 12V DC lighter socket if you wish. It’s available from Amazon for $29.97

Boomtune Mini: Portable Speaker Tripod

The Boomtune Mini is a portable speaker system that incorporates a tripod design and has a 2 x 1W output. It runs on one AAA battery. Boomtune Mini can be used with almost any MP3 player. It appears to only be available in Japan. More information at Yanko Design – thanks for the tip.

Portable, Motion-Detecting LED Lights

Portable, motion-detecting LED lights are an efficient way to light rooms at night for a few minutes. This portable light from Maxxima, turns on when you enter a room in the dark (similar to motion-detecting outdoor lights), then turns off after 30 seconds of non-motion. It runs on four AA batteries (we suggest using NIMH rechargeables), and should last about …