When packing for a solo trip, items like a portable charger, a reusable water bottle, a secure backpack, packing cubes, a first-aid kit, travel documents, a neck pillow, comfortable walking shoes, a small flashlight, and any necessary medications can be particularly useful, as they help you stay organized, safe, and comfortable while traveling alone. if you are going for a vacation in other country i personally recommend you esim is best and the matrix esim that i used in my recent trip is amazing you must try