Target had these for awhile. I don't know if they still do. $9.99 for a heater that heats just a small space.
I had one at work and two here at home. The heating elements died in one at work and one here and I couldn't lay my hands on the other one. I thought it was downstairs.
It was under a couple of boxes.
Now, my home office is toasty warm. I could use another that would stay in the bathroom for these chilly mornings.
Finding this makes the soreness from moving a lot of stuff to get to the tree worth it.