[QUOTE=rhyme;340045]
A) A cheap cell phone charger that clips onto my bike. I found one but it was like $90!

Fry's electronics sells a solar panel for about $30 that can be strapped to a bag or package carrier and produces enough charge to power an ipod or cell phone. I wouldn't reccomend it as the only way to charge your low voltage devices, but if you're in need of just enough battery life to get you home to your wall charger, it might do the trick. The down side is I don't know how long it takes to build the charge. It may be well beyond the amount of time you would normally spend on your commute.