Retirees are just naturally expected to have a few projects-- scanning old photographs or cleaning out the basement--that are fall-back activities in case there is nothing else to do.
I would gladly ignore these boring-but-worthy tasks except that disorganization offends some basic bit of librarian DNA. So today I started with the garage, a manageable mess, and realized that one hour of sorting, cleaning, and discarding is all I can stand. At this rate, the garage will be clean by Christmas.
Good thing retirement projects have no deadlines.