Hi Rod,
"shipshape and Bristol fashion
The term may have developed in view of the port of Bristol which had (before the Floating Harbour was constructed) a very high tidal range of 13 metres (43 ft), the second highest in the world. Ships moored in this area would be aground at low tide and, because of their keels, would fall to one side. If everything was not stowed away tidily or tied down, the results were chaotic and cargo could be spoiled.
Adjective
(nautical, traditional) Tidily tied down and secure.
(figuratively, or by extension) Properly and neatly organised or arranged."
😁😎
https://en.wiktionary.org/wiki/shipshape_and_Bristol_fashion