Thank you everyone for your kind comments.
Chasing Hawk, how clever to bring another shirt... I never thought of that but have thought of making a long neck scarf ~~for catching my failings~~ which can be removed afterwards. My sis is waiting in line for any I produce.
My Dad wouldn't know to put a bib on or off. He is very sensitive about anything being around his neck so that is why I made long, soft fleece strings. If it touches his skin he won't notice it.
My Mom is the one who deserves the praise. Their 66th anniversary will be December 29th. She visits him every other day (she's 84 and he is 86). She prods him along to 'try' to do things for himself and he responds to some of her coaching. Alzheimer's is a sad disease but Mom looks for the bright things and I know that helps her to keep going.