I was dreading the beginning and end of our honeymoon. FI wanted to drive 23 hours each way without stops from NH to FL because he thought we were saving money and that it would be fun. Ugh.
It would've cost us $550-600 in fuel to drive, plus oil change, plus hotel stays.
I was able to use some mileage I had to get round trip tickets for both of us for $200 (total) and I found a rental car for $400 (total).... so it's now cheaper to fly!
He finally agreed to flying and that means I get to add another day to our honeymoon.
Deleriously happy and relieved right now.