A grocery list is a written or mental inventory of items that one needs to purchase while shopping for food and household essentials. It typically includes essential ingredients, pantry staples, and other necessary products such as cleaning supplies, personal care items, and pet food. The purpose of creating a grocery list is to help individuals remember everything they need to buy during their trip to the store, which can save time, reduce impulse purchases, and ensure that one has all the ingredients needed for meal preparation or other household tasks.