https://trueblue.jetblue.com/web/trueblue/15rebate2017

- Register and book by 11/14 for flights though 2/14/18
- Book with points and get 15% of those points re-deposited to your account 4-6 weeks after the end of the promotion on 2/14/18
- If you're also a JetBlue Mastercard holder, you'll get 25% of the points back

Not a bad deal at all, especially since it's valid for holiday travel.