The author shares her personal experience of packing everything into a carry-on suitcase, thanks to these essential items priced at $50 or less. These include a pair of Spanx pants, ballet flats, and an under-$20 lookalike for Kylie Kelce's Lululemon crossbody bag. The author also shares her favorite self-care products, including mini toiletry bottles, flexible packing cubes, and lightweight clothing. She credits these products' flexibility and ability to store full-size items in their luggage.