Quick answer: Pack from a list of jobs, not a list of outfits. One bag that fits the overhead. Layers that are not damp. Shoes you can walk a city in.
Travel here is packing and clothes, not destination photography. Carry-on only is a volume and a liquids problem. Europe backpacks are a size and a theft-and-comfort problem. Frequent-traveler capsules are a repeat-outfit problem.
Long flights are a sit-test in public. Shoes that come off, a layer that is not a hoodie costume, a neck that does not need a novelty pillow if you already hate them. Beach packing is a different list — swim, sand, jewelry rules — and will stay on those object pages until a dedicated packing list exists.
A work backpack vs a briefcase is the commute sibling. Do not make a schoolbag do a city if you already know you hate looking like a campus.
Q: What is this Travel hub?
A: Pack from a list of jobs, not a list of outfits. One bag that fits the overhead. Layers that are not damp. Shoes you can walk a city in.
Q: Where do I start?
A: Start with the first three guides in the list. They answer the buying questions most people actually have.
Q: Are these product reviews?
A: They are construction and decision guides. Named specs beat brand mood.