Make your bananas last longer

Don't you hate it when you decide (TOO LATE) that a banana sounds like a really good and yummy snack, only to find out that they are too brown for you to eat? 

Here is a tip I found on LifeHacker.http://lifehacker.com/5963122/keep-bananas-fresh-longer-using-plastic-cling-wrap 

Wrap the crown of the banana with cling wrap and extend the life of your bananas by 3-5 days.  Unwrap when you want to take a banana, and wrap the crown again to lengthen the life of the bananas. 

Do you have any tips for helping your food last longer?