This document discusses 15 must-have travel accessories for those who love to travel seriously. It provides details on several accessories including a worldwide plug for charging devices in different countries, a sleep mask to block out light for sleeping in new places, using bags within bags to optimize packing space, and a security neck pouch to prevent theft of money and passports while traveling abroad. The full list of 15 must-have accessories is also provided which includes items like walking shoes, a cosmetic bag, extra sleeves, a shoe bag, Wi-Fi speakers, caps, and a Kindle for reading books during travel.