Does anyone here think they can help me find out ABOUT how much it costs to run a lightbulb for an entire month? Provided the lightbulb is between 60-100 watts? I'm not really great at the real-world math stuff....

We'd need to know the price of electricity. the price is in kwh's, which means how much it'd cost to operate a 1000w device for an hour. so a 100w lightbulp would cost 0,1kwh/hour. 2,4kwh/day, 72kwh/month, a 60w lightbulp 0,06kwh/hour, 1,44kwh/day, 43,2kwh/month.

Now check your electric bill for the price of a kwh.

Okay, because aparently in my house, if I leave a light on again I'm going to be charged for electricity... whereas everyone else leaves their room lights on upstairs while everyone is downstairs... If im going to pay electricity because of 'leaving lights on' im going to be an *** and state some facts. My parents are retarded, they are OBSESSED about turning out lights, yet the house stays at 72F all week. I'm PRETTY SURE that the lightbulbs arent whats sucking the juice in this two story, dual AC unit home.

Didn't you invent an energy crisis solution some months ago? Can't you put that to use?

Call them on being hypocrits. Note all their energy wasting practicves and present it to them.

These (and other twist bulbs) are supposed to be great in the long term, from what my EnviroSci instructor said. It requires more cash up front (obviously, $5 per bulb) but they use like 1/4 of the energy and last years if you remember to turn off lights when they aren't in use. Your savings will vary by how much your electricity costs, if you get the bulbs on sale, etc.

I don't have personal experience with them, however, I keep the lights off so often that I'm still using the bulbs that came with the apartment, and my halogen dimmer lamp that hasn't need a new bulb since 1998.

Find out how much electricity other things use as well - heating if electric, appliances, electronics, etc. It'll definitely help your argument if your sibling constantly forgets to unplug a table saw for instance (it's a stretch, but hey).

Parents that ***** about lightbulbs are retarded. Lights drain little to no electricity. It's leaving on TVs, PC Monitors, Fridges, Microwaves, and high powered amps/stereos that suck electricity. Ask your mother why she uses a curling iron and a blowdryer every morning: She's probably wasting 4 times as much energy in a morning than your single room's lightbulb in a month.