Saving energy is becoming fashionable, as well as frugal. LS Research is providing help for people who want to do more than swap out lightbulbs. Its Rate$aver energy usage rate monitor is a wireless, in-home display that shows consumption data from the home's utility meter. The unit itself is a power miser, operating as long as two years on two AA batteries. It also uses novel display technology that makes the data visible even after the power is turned off. It uses ZigBee, employing a 100 mW power amplifier that covers most homes without a repeater.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.