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?
Using Avocados
Avocado Popsicles
Soil Advice for Avocado Plants
Storing Applesauce in Ziplock Freezer Bags?
Freezing Melons (Cantaloupe, Crenshaw,...
Storing Avocados