Refrigerating unripe avocados can prevent the fruits from ripening, but once they are ripe, place in refrigerator.
If you cut an avocado, coat it with olive oil or lemon juice to prevent browning. But don't worry, a thin brown layer can be scraped off a stored avocado and it's good as new.
Leaving the pit in the part of the avocado you're storing can also lengthen shelf life.
How to Store: Room Temperature
Best Used within: 1 Week till ripe, then place in refrigerator