I'm sorry, but even as a lowly piece of SLF, I can see that, while you may be great at flying planes, you have no idea how to get a good level of tips.
In the second post of this thread you were almost there but...
Instead of going through the cabin before starting descent, you should start the descent (or is it more properly called a plunge according the press?) THEN go to the cabin and tell them you'll only return to the flight deck when your bag is full of cash.
Mention of a school someplace beneath you is optional.
Bob