I bought a bunch of the Snuggle flannel from Joanns today, I wash it and dry it in the dryer. Be sure and use a color catcher in the wash cycle if you buy any flannel with red in it, in fact use 2, red bleeds like crazy.
I set my timer for 10 minutes when I throw the flannel in the dryer and stop the dryer every 10 minutes to clean out the lint trap - you will have a truckload of lint!!