18/30: Na na na na, hey heeeyy, goodbye

Today, we're saying goodbye to somebody or some thing.

Is it somebody you used to know (unintentional Gotye shout out)?  Maybe a bad habit?  You could pen a goodbye letter to a memory you've been holding onto and realize it's time to show it the door.

It doesn't have to be mean-spirited.  It can be loving.  It can aslo be loving and brutal.

What have you had enough of, or too much of?  What needs to go away?  Or what do you wish you could say goodbye to?