In September 2020, the Federal Association of the German Food Trade, the BVLH, published a representative survey by the Forsa institute. Three out of four Germans said they think carefully before larger shopping trips about which products they will put in the cart. Among those who plan larger food purchases in advance, 84 percent use a list. By far the most common planning aid is the Einkaufszettel, a shopping list written by the shoppers themselves. One in five also uses a shopping app.