As I get older and the weather seems to feel colder, my favorite companion is this sock bag. It's filled with cheap dry beans and is heated in my 20+ year old microwave for about a minute to become toasty warm!
In the daytime, the bean bag warms my hands and the cold chair bottom before I start typing this blog. At night, I love to feel the bag's warmth on my feet under the covers at the end of the bed. [Even though my husband's feet are usually warmer than mine, I am reluctant to place my cold feet on his!]
The warmth of a heated bean bag endures for at least 30 min. And I've been using the same beans for at least a month.
Another way I try to get warm is a cup of hot tea! Especially Constant Comment Green Tea flavored with orange and spices. Splenda works great to sweeten the tea.