Avocados do not last long, and you can freeze them to take advantage of sales.
Steps:
Can you freeze avocados and if so how?
How do you freeze avocados?
Avocado Popsicles
Using Avocados
Soil Advice for Avocado Plants
Storing Avocados
Storing Applesauce in Ziplock Freezer Bags?
Freezing Melons (Cantaloupe, Crenshaw,...