I used to have stacks of bags. The everyday work bag - various train commute bags (with compartments for the tech). Various plane commute bags - no tech except phone, book, passport, and sturdy enough to act as either footstool or pillow. Lavender and tea tree were good for long distances, being antivirals. Hot bath with oils on arrival to splat viruses caught en route from recycled air. The miniature bag that doesn't weigh a ton was the retirement treat.