Is this fair? My aunt does not work - and has never worked in her adult life. My uncle makes all they money in a job he hated for 30 years.

Hmm. Would she know what he needs to have packed? It can be difficult to pack for somebody else. What other things does she have going on? Just because people don't work, doesn't mean they don't have other obligations. While I'd be willing to help my husband out if he really needed it (regardless of my work situation), I don't think it should be an expectation for her to pack his bags simply because he works and she doesn't. Although, "it's his bag" doesn't seem like a very good reason to decline.