Re:I invented this already (Score 2)

People keep saying that they've already invented this, which I don't doubt. I had a pretty neat idea along these lines a while ago, too. Plus, there was the Dilbert strip (which people have mentioned), and there was another almost identical gadget in a recent Flash comic. The only difference here is that someone actually built it this time. We should realise that if we see an fingernail scrubber that powered by egg shells, odds are that the guy down the street had a dream about it once. I don't mean to offend anyone who claims that this was their idea, I'm just saying that it's kind of pointless to mention.