Leave the pit in the unused half
Brush the cut surface with lemon or lime juice
Brush the cut surface with olive oil
Press plastic wrap directly onto the exposed flesh
Store in an airtight container
Keep the avocado refrigerated
Use a vacuum-sealed bag if available
Cover with a thin layer of water and seal tightly
Add a little vinegar or citrus juice before storing
Minimize exposure to air by cutting only what you need
Use the avocado as soon as possible