THAT SAVES TIME AND SPACE: For a journey lasting less than 3-4 days, which is almost all short trips, you should pack gadgets which are useful concerning the journey as well as destination.
Tools that are capable of solving problems faster are a must if you want to enjoy your next trip without spending time on relatively useless stuff such as drying clothes, heating water manually, etc.
Since different people have different heights and neck shapes, and airlines don’t customise their seats for people, you are better off with a travel pillow which is made of a material that adjusts according to your height and neck shape.
Wired earphones, that had limitations like getting tangled in bags, breaking easily, small lifetime and constant earaches have been replaced by Bluetooth headsets and earphones that are much better than the traditional ones, especially for outstation purposes.