It looks like there is something to be said for living on a credit card if you make more money next month than you do right now, and paying it off when you have more money. I like the idea of having millions and millions of dollars each year available from next year's increase.

Yup. That's the whole principle behind Loomis' and Hartley's system. In economics and accounting studies we would have related it to present versus future values.

Let's increase the spending limit on our credit cards. We're going shopping!