Any approach to jet lag that actually works

Shift the light schedule, not the sleep schedule: get bright light in the morning at the destination and avoid it in the evening. Melatonin helps at small doses taken early relative to the new night; large doses mostly make you drowsy at the wrong time.

By choosing a colour palette and doing laundry once, not by rolling more efficiently. Three tops, two bottoms and a layer covers a week; the volume that defeats people is shoes and the "just in case" category.