I'd give myself a solid 7 on the cleaning side.
Business side, I have a BS degree in business, Owned a still successful business, managed a few.
I would still only gimme about a 6.5 there.
It all comes down IMO to good procedures, and following them. Plus there is a lot of details that go into a business. The smart (and normally successful) business person knows their strengths and weaknesses, and play to their strengths. If I am a good sales person and people love me, but stink at accounting or business law- then you hire out the accounting or law portion and focus on what you bring to the table. If you know what you are doing with the practical side of things but can't stand dealing with people, set yourself up as the ops manager, train yer techs and get an office manager to handle customer service/sales.
You don't need to be a deity to run a successful business, but you do need to be honest with yourself, and lose the ego in realms you are unfamiliar with, or just plain suck at.
