Unless you need to make banana bread, bruised and blackened bananas are nobody's favorite.Here are some tips for making them last a little bit longer:.Buy greenish-yellow bananas instead. These will ripen over the course of a few days, giving you more time to use them.Bananas stored inside a bag will ripen faster, since the bag will hold in ethylene gas and speed up ripening.Divide your bananas, and wrap the stems individually to get the maximum shelf life.Store bananas upside down in a bowl to protect the fruit from bruising.Hanging bananas from a hook will ensure that they're exposed to proper airflow, and that helps their shelf-life.If you notice that bananas are reaching the point of no return, refrigerate them without a bag to buy a few more days