foot warmer

It is very cold here in Dallas now. This week is always thirty five degrees Fahrenheit so every time we go out we have to wear our heavy jacket. Yesterday morning was raining so when I went to work I was really cold and my heavy jacket was not enough for me. I was freezing. I know thirty five degrees is not that cold yet, but for me it is. I get cold easily especially my foot. Even I am under the blanket my foot is cold so I always wear toe sacks. I need  foot warmers that I can use anytime I want and wherever I am. I can use in my car when I am driving, under my blanket or under my computer desk. I know what I want for Christmas now.