I THINK I read a Quilting article from this group that said they could be used in the dryer as well as in the wash.
And I did understand that they catch the dye, not remove it. (silly me) I was thinking they are squares like those dryer sheets. (again silly me for being lazy in the use of words) i know better...
I'm heading to the store today to see if I can find them.
Thanks for everyone's clarifications!