Table lamps are tracked as a set of two.

Source: Research by Alina Selyukh/NPR and Charlotte Norsworthy for NPR.

Credit: Daniel Wood/NPR. Icons from the Noun Project (fish, dog by BomSymbols; garlic by Alena Artemova; lamp by Imam sanjaya; screwdriver by; bicycle by Jens Tärning; lightbulb by Linseed Studio; collar by Andrejs Kirma).

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