If you are poor and live in a shit house, get one of those wearable blanket things (preferably a thicker, more expensive one) and some ugg boots (again, the best quality you can afford). You won't need heating with this combination.
I have an OG one too - wearing it right now, in fact! You can get them very cheap now at Kmart and the like but they definitely feel a lot thinner than the original. They're not always as long, either.