or spontaneous combustion, or perpetual motion, or something. Sweep the concrete entry porch free of caterpillars, look the other way for a minute or two, and then at least a dozen of the little varmints will be crawling around where you just swept. Do they spring out of the concrete fully formed and ready to crawl? Whatever the case, it shows Mother Nature at her most profligate.

Walkabout. An underlying Pattern Language type of concept for this house was that a person should be able to walk completely around it without problem. I remember spending hours on the treadmill at cardiac rehab walking around the imaginary structure.
And, to some extent, the idea was realized, except that the route took the walker through the screened porch (and two banging doors).
Doors will bang no more. The new walkabout deck de-necessitates the porch route. And, it is going to make the hanging of winter plastic ever so much easier.
Quite likely, also, to cut the time it takes grandkids to race around.