Good kitchen management begins by measuring waste. Vegetable trimmings can flavour stock, stale bread can become crumbs, herb stems can season sauces and overripe fruit can be cooked into compote.
Food safety still comes first: use clean, sound trimmings, cool stocks quickly and label everything with a date. Not every leftover should be saved.
Reducing waste respects the ingredient, lowers cost and encourages creativity. The best habit is simple: plan before buying and use older safe food first.