I don't have the books, but Bonnie Hunter has two books with patterns specifically for using shirts and recycling clothes. She shows several ideas of using even the cuffs and collars I think.
I have a bag of my Dad's shirts that I want to make a quilt out of. Thanks for the link to the Bread and Butter pattern. That has possibilities.
My friend and her DH just retired. She said she saved about 30 of his dress shirts that he got rid of. She said there were also several bags they took to charity.