To save money on heating but still stay warm, my coworker Anna has rediscovered hot water bottles. Sitting with one in her lap in the evenings at home keeps her nice and toasty and unbothered by the cooler temperatures that surround her. My youngest daughter loves sleeping with a hot water bottle. Sometimes, I think she fakes a stomach ache just so she can get the hot water bottle. Drug stores like CVS AND Walgreens sell really cheap ones that are plenty sturdy. Or you can buy a cute one online. From my quick search on Amazon.com (http://www.amazon.com), I saw a plush red devil, fleecy lamb, Scooby Doo, night sky-themed fleece, and one “dressed” in a knitted turtleneck. I don't bother boiling water -- just run it hot from the tap. But if you don't want to worry about accidental leaks try a heating pad or microwavable flax seed pillow.