Padmill
A padmill is a person who keeps every photo ever taken, even the blurry ones from 2003.
My cousin is a padmill. She saved every photo from her childhood, even the one where her hair looks like a tornado.
My mom is a padmill. She has a folder called '2012 Family Vacation' with 42 pictures of my dad eating pizza.
My friend is a padmill. He has a picture of a cat from 2001 and still keeps it.