Carina Brooks went food shopping to Aldi with her mum, Linda, 43, and decided to tidy the shelves as she went around the aisles.
She did so well, the staff noticed and joked she should apply for a job there.
So at home, Carina, who has Asperger's syndrome, wrote out an application letter.
The manager of the store in Anniesland, Glasgow, Oliver Tingey, said that he'd keep it until she was 16 but gave her a "shop assistant" badge and some sweets to thank her for her help.
Linda was quoted in the Daily Star, saying: "Her brother was so impressed when she was given some sweets that he has now joined in."
Oliver said: "Carina has been a real asset."
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