Your last sprint will invariably be the best sprint you have ever worked on.
You will put in all the extra time needed to get all those bugs in that have been bothering you forever.
You’ll put that extra polish on those stories so they zip through QA without a bug.
You’ll comment the heck out of your code so people can understand it.
It will be your masterpiece.
The question is – what’s stopping you from doing that now?