Walk in the room where she is running the vacuum cleaner or doing laundry, and say in your loudest voice "WOMAN, I'M GONNA BUY ME A BOAT".
That is not how I would do it, but feel free to use the above idea if you think it would work.
When we fished out of a 1542, I would put her in the front seat and run the terrova with the remote from the back and put her on some good fish. After a couple years of this, I said we need a new boat or you are gonna have to move to the back so I can catch some of these fish. We got a new boat and now sit side by side, and she still catches the most fish.