You can use latex gloves to keep your hands warm while working in a cold garage.
Keeping hands warm can be quite a challenge for home mechanics working on automobiles in cold garages during the winter. One useful method of combating the cold is to wear a thin pair of disposable latex gloves. These inexpensive gloves are available in packages of a dozen at hardware and auto parts stores. The gloves keep your hands warm, and they keep them clean as well.
If this isn’t enough, fill a 2-liter plastic bottle with hot water and wrap it in towels to retain heat. Then when your hands need warming, grasp the bottle in both hands while enjoying a pleasant few minutes of rest.
Santa Cruz, California