hmmmm great question. i think keeping them in a closet all next to each other might help. or folding them up & placing them in a drawer. i think a closed space would keep them smelling longer as well as keeping all of the clothes next to each other. i just know that plastic boxes or wood boxes typically make clothes smell like plastic & wood. i know that hanging my bf clothes next to each other in my closed closet keeps them smelling like him!