I have 6 of them in various sizes. I use the one for my neck and lap on evenings or morning when it is just a wee bit chilly but do not want to turn on the heater :wink: I like sewing the channels in them too, it really helps keep them from lumping up when you use them on your back. I have also sewn apron strings on one so that I have something to hold on to as I am getting it in place on my back. They also work well to stick in your bed 15-20 minutes before you go to bed, as a foot warmer :D