The best souvenir is an object that keeps doing its job after the memory becomes soft around the edges. A small ceramic bowl from a market. A book you could not find at home. A fragrance tied to the weather. A linen napkin that makes an ordinary dinner feel slightly elsewhere.
Buy local, not literal
The object does not need the city name printed across it to belong to the place. In fact, the quieter connection often ages better. Look for local makers, materials, publishing, food traditions and design languages rather than souvenir iconography.
Consider the suitcase
Romance has weight limits. Fragile glass, giant ceramics and anything that requires its own seat should be considered with clear eyes. Flat, soft, small or shippable is a category of chic all its own.
Use it immediately
Do not turn the trip into a museum at home. Open the olive oil. Burn the candle. Wear the scarf. Put the print on the wall. Objects carry memory better when they are allowed to enter ordinary life.