Just in time for Halloween, we spot this ghoulishly-themed iPhone and iPod Touch App that's gearned towards a most frightening concept: You might be throwing away money on vampire power!
We already know there are tons of gadgets in our homes eating away at our power even when they're powered off.
You can check out this chart to see who the worst blood-sucking culprits are, on average. But if you want to know exactly how much power—and money— you're wasting, look no further than this (Free!) iPhone App.
Once you let the Vampire Power Calculator know how many hours a week you use your plugged-in gizmo, it will spit out a few figures to show you how much energy and money you're wasting. You might be surprised to figure out that you don't need a costume this weekend—you could already be the vampire king!