Constant shopping list
Whenever I write my shopping list on Fridays (shopping day), I forgot something. These were mainly things that you do not need so often and had gone out during the week (sugar, spices, Kloputzmittel, toothpaste, etc.).
That's why I bought a small booklet in which I always, when something goes out, enter the matter in question and on the shopping day I need only complete the list with the food and tear it from the notebook - the shopping list is ready!