Reduce waste from your food
How many times have you purchased something and then forgotten to use it after you came home from the place you buy, resulting in spoiled food that had to be thrown out? When you go to the grocery store and just buy what you assume you need, you almost always end up wasting money on unnecessary items. This not only makes for an unpleasant space inside your fridge, but it's also bad for the environment if you don't compost.
You may reduce food waste and thereby benefit the environment if you have a meal plan and a shopping list to go with it. Additionally, cutting back on waste enables you to stop spending money on food that is only consumed once and then wasted. You can cut down on food spoilage and always eat fresh food instead.