Toiletry bags, storage bags, TSA locks, luggage tags: a few travel accessories are enough, as long as you choose ones that solve a real problem.
A useful travel accessory solves a specific problem: packing without wrinkling, finding luggage, closing a suitcase, transporting liquids according to safety regulations. The rest just adds clutter.
Packing accessories are divided into two categories. Packing cubes compartmentalise by category, one cube per type of clothing, allowing you to grab what you need without unpacking the suitcase. Compression bags reduce the volume, but at the cost of wrinkled clothes.
A toiletry bag is chosen based on its opening: flat, it can sit on a narrow sink; hanging, it frees up the countertop. In the cabin, liquids must fit in small volume containers grouped in a resealable transparent pouch. A compliant accessory helps you avoid a longer security check.
A TSA lock is characterised by its service key, which allows security to open it without forcing. A luggage tag with a hidden window keeps your address safe from prying eyes. These two accessories are inexpensive and help prevent the two most common issues: forced luggage and untagged bags on the carousel.