Spiker .........I agree with you totally about how "savings" from CFLs in winter fail to take into account the reduced heat that incandescents give a room. In Ontario here starting Jan 1 we are told we will no longer be able to buy incandescents, I don't believe it will happen, but I have stocked up and live close to USA border. Not that I try to heat my house with incandescent bulbs , but for example I try to keep my insultated garage no less than 36 degrees farenheit, so my paint won't freeze etc etc...... so I start a fire in woodstove every second or third day, in winter, but sometimes I just need to leave a couple lights on in the garage and that will be enough to keep it above freezing until I get around to starting a fire.
I find leaving a few lights on is far less worrying than plug in a portable heater that could spark or fry.
Yes I have a few of the new fangled ones , but they burn out quite often too. ...and trust me they don't get disposed with the "hazmatt" method, they just get buried in the regular garbage bag....I didn't ask for mercury bulbs to become the standard and it was not thought out well by the politics behind it.
As for summer I barely use lights in house in summer and sun goes down at 10 pm and thats bed time. I rarely use window airconditioner.