Leave the pit in the unused half
Brush or sprinkle the cut surface with lemon or lime juice
Coat the surface with olive oil
Wrap tightly with plastic wrap, pressing it directly onto the flesh
Store in an airtight container
Keep the avocado cold in the refrigerator
Use a vacuum-sealed container if available
Cover with a thin layer of water before sealing
Add avocado to dishes right before serving
Minimize exposure to air by cutting only what you need