I've gotta try your method of cleaning cast iron. I never really knew how to do it before. I'll try your way next time.
BTW I had no thought you were a nasty cook. We've all become so accustomed to dishwashers, antibacterial everything, and nonstick whatevers that it's good to know there are others out there who still do some things the more old fashioned way. I have to pay more to skip the antibacterial crap sometimes and it irks me. I fear we're working on yet another superbug, a home grown one.
I should never overestimate my basic arithmetic skills.