lazy-bones
A particularly lazy or indolent person. Come on, lazy-bones, you've spent half the day in bed. Time to get up and be productive!
lazy man's load
A large amount that should be carried over multiple trips, but which a person tries to carry all at once in order to avoid making a second trip. Stop trying to take a lazy man's load—take two trips to bring the groceries in or you'll end up breaking something.