I genuinely love how American, Australian, and British, English all differ in these subtle ways. I think another example that gets me is: `e.g.` vs `e.g.,` MS Word favours the `e.g.,` which I never see in Australian English.
Going off on a tangent, here's a random example...
The way brackets/parentheses are referred to in American English vs British English is different.
In the US:
() = parentheses
[] = brackets
{} = braces (or curly braces)
= angle brackets
In the UK:
() = brackets (or 'round brackets')
[] = square brackets
{} = curly brackets
= angle brackets (or angled brackets)
I prefer the UK version because it is simpler and feels logical. Plus, the word 'parentheses' is a mouthful :-)