Re: We use base 10 for a reason
And isn't it funny that everyone wrote out half-crowns as 2s 6d (2 and 6) rather than as, well, half a crown.
Is it? Did they?
I used to write 2/6, just as I'd have written 4/9 for four shillings and ninepence ... it's quicker than "half a crown" and more consistent ... and "1/2 crown" might have been confused with one and tuppence.
I never wrote "one florin" when I meant 2/-, either.