I think I've learned that if you have a house, you end up living in the kitchen, so if you have one big kitchen and then enough bedrooms for your family, that's about all you need for a home.
What's the most critical factor in any business decision you'll ever have to make? Basically, it boils down to this question: If this all crashes, will it bring the whole house tumbling down like a pack of cards? One business matra remains embedded in my brain - protect the downside.
The funny thing is people won't let me pay for things. I'll be in a restaurant and the manager will say, 'Oh no, it's on the house.'