My Mum makes a handwritten shopping list every week, as she has no truck with anything electronic, except for playing Wordle on the ipad we gave her for a significant birthday, and occasionally, and with great trepidation, googling something. Her list is on a small piece of scrap paper and follows the order of the aisles in the local supermarket, so fruit and veg first, then tins, bread, household items etc etc. She'd be in a right tizz if they ever changed the layout! She'd never be untidy enough to leave it in the trolley, though. It comes home with her and the shopping and ends it days in the recycling bin.