Okay, something I use every day is my laptop, so I'd like to be able to power that in a different way. Surely it wouldn't be too hard to fit a solar panel to the back of the screen, and to charge that up when I'm out at work? That would then replace the battery, and would also result in a lighter laptop.
Another idea I had is that I work out most mornings (although not recently- tut, tut) on my Wii, using either Wii Fit Plus or EA Sports Active: More Workouts. Is there a way that the energy I create in my workouts- which is undeniably a lot- I get very hot once I get going- could be used to charge batteries, or my laptop? There's a lot of heat just going out into the atmosphere. I imagine having some kind of electrodes attached to me, in the same way that a heart-rate monitor is attached, or the leg strap in More Workouts, and the energy being taken and used. Further to that, you could measure the amount of energy produced and earn further game points, in an idea similar to the one mentioned in this TED talk:http://www.ted.com/talks/jesse_schell_when_games_invade_real_life.html
A further development on this- I also run- although not for a while- hmmm, theme emerging here! Take the example of the Ipod./ Nike Plus technology used which monitors runners' performance. Well if we could harness the heat created in the body, surely that could be used to charge the battery in the ipod while you're running? A circular and self-sustaining system.
Now, I'm totally prepared that these ideas may be completely ludicrous and shot down, as I'm no science expert. But I still feel as if with the right know-how, they could work. I remember watching Knight Rider in the 80s and being amazed by the idea of talking into your watch. Who was predicting mobile phone technology, with it's music playing and games and apps, back then? So, if anyone has any ideas how to practically explore these notions further, let me know.