[Software] Deep down, I know that standardisation is right, but I just simply love old Imperial measures (and coinage). A friend of mine who runs a flower wholesale outlet spent an entire day last week quoting all prices in old money, for fun. He didn't restrict himself to pounds, shillings and pence, oh no...tanners, florins, guineas, crowns, half-crowns and farthings were all brought into play. It made his day go by much faster.
There's a wonderful list of unusual units of measurement at one of my favourite websites,
Phrontistery, which includes the dalton, the darcy, the footlambert and the face-cord. For sheer frivolity, I try to incorporate some of the words from that site into conversation, so I think it's quite easy to see why I want to cling on to Imperial measures.