Perishables

What to do with food going bad? I got back from New York and noticed that my bananas were going bad and the milk in my fridge was going to expire in a day. Soooo I made banana milkshakes with my Magic Bullet. I kind of eyeballed it so can't give accurate proportions. Each consisted of 2 small bananas, 4-5 frozen mango chunks and approximately 15 oz of milk.