All your best intentions will be for not if you end up throwing away food. Make sure to freeze leftovers if you don't think you will be able to eat them soon. Don't buy more dairy, fruits or vegetables than you can eat before they go bad. When you buy meat, always have a plan for it. Make sure to use it on a day well in advance of it's expiration date or freeze until you will need it. If you buy a food item that spoils before it's expiration date, return it to the store.