you say you pay for gas, but is it just for cooking, or all of it?
(because i've lived in apts where _heating_ gas was paid, but not cooking...)
if you do pay for heat, depending on where you live (cold windy winters?) and if you have drafty windows - put plastic window insulator stuff on them.
electricity cost i'm guesstimating 25-50$/mo., but i think you should call the electric co and ask them

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- + - ° GiRLie GeeK ° - + - °
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Therell be days/When Ill stray/I may appear to be/Constantly out of reach/I give in to sin/Because I like to practise what I preach