Wash the car and clean it inside too.

Shine his shoes.

Clean up his work bench.

Rearrange the attic.

Put those CDs into a database so it can automatically alphabetize them for you then store them in that order in bookshelves.

Stand up against a wall with nothing on, your hands perfectly still at your sides, your breast sticking out, and not saying a word to just let him admire you until he thinks of a task of his own.