I don’t want to contribute to global warming any more than you do, but have you ever kicked around a couple of CFLs for 6 months while waiting for a trip to the transfer station? CFLs can not be disposed in the regular trash because they contain mercury. So they last for years, but when they finally do burn out, getting rid of them is a pain.
LEDs may be an option! I want to hear more about this and will be paying attention as this technology progresses. Read Light bulb may be on its way out