How can I save money heating my home?

I live in the midwest and I am unemployed and trying to conserve energy and keep my gas and electric bills down. I live in an apartment that is about 750 square feet and I keep the thermostat set pretty low, around 63-65. I use a space heater in the room I am actually in - do you think this will save me more money than heating the entire house? Also, I am considering getting an electric blanket for my bedroom which is always colder than the rest of the house. If I keep the furnace set at around 63 and supplement it with this blanket, will that end up costing me more or is this a good idea? Any energy tips or ideas would be great! My heat is gas.