Any incandescent bulb aimed at your head will help you feel warmer, even a 60-75W. I tested this with a 75W halogen to make sure it wasn't necessary to use high

Any incandescent bulb aimed at your head will help you feel warmer, even a 60-75W. I tested this with a 75W halogen to make sure it wasn't necessary to use higher wattage. Also in lieu of heated keyboard and mouse, a laptop that is doing something energy intensive will put out 100-200W; some through the keyboard, but also to the nearby areas of the desk. I know it's not ideal for how a lot of people work, but i've gotten used to it. I also use a trackball instead of a mouse so i can just put the trackball near the laptop exhaust and keep it warm too.