One of the biggest environmental impacts of any product you buy, especially food, is the presentation. A good tip is to support the little guy as he won’t go through the schlep of packaging every single item. Cut down on packaging by purchasing your fresh produce from a market or a fruit and veg shop. Not only is this cheaper but it is nowhere near as wasteful. Always choose the product with less packaging even if it involves more manual labour like cutting and grating.
It’s all about time management, an art most of us still have to master.