>>Decimilisation of our currency was a huge boost to inflation. I never saw the benefit. its supposed to make calculations simpler but I never saw a lot of people struggling with 12 pennies in a shilling, the threepenny bit, the sixpence, the half crown (two shillings and sixpence), the florin (two shillings). That was proper money.
>
>And we still use the expression "old money" in amusing ways, eg "Today it will be 25 degrees C - that's 77 in old money"

Funny are the ways of the world. We had our first money change in 1965, when two zeros were dropped, but we kept expressing everything in the old dinars for at least 25 years more - my first salary was about 10K, but when asked I would say it was a million. Only Miloševic's exponential inflation managed to kill the habit, well, regarding monetary amounts only. I think I can still hear "can you express that in old units" (like calories instead of jouls, or atmospheres instead of kilopascals), as "how much is that in old dinars".