I envy your ability to do this but maybe things are different in my world. Tracy has always made vastly more money than I have. I'm not embarrassed by it, not intimidated by it, and it doesn't bother her in the least that she's the chief bread winner around here. The thing is that any time I buy something that has a pretty hefty price tag attached to it, I feel like I'm spending her money to get it. Out of prudence and a deep respect for my wife, I feel compelled to get her approval before pulling the trigger. It may take a couple weeks, or maybe even a couple months, but I always get it and I've kept the harmony that maintains a great relationship. No question, if the tables were turned, I'd do the same thing you are able to do but I gotta do the right thing by her.
Robert