This is a collection of web services I use in my own projects.
Help yourself!
The public holidays of Australia are decided on an ad hoc basis by our crazy politicians, so they can't be predicted, we just have to wait for them to be handed down. Usually we get to know them a year or two ahead, except when they are related to "footy". In that case, the footy people get to decide on a whim, whenever they like, and the politicians obey them and issue the decree.
If you need to know whether a particular day is a particular holiday in a particular Australian state, send the day and state to this service and get an answer back like "NORMAL", "SATURDAY", "SUNDAY", "QUEEN'S BIRTHDAY", "LABOUR DAY".
Australian public holidays - API Playground
and a cool example of the output See upcoming holidays
Helps you work out what that cryptic and suspicious transaction on your credit card or bank statement actually means
This one grew up and moved out : Bank Statement Madness
Here is my standard, as I needed to code this and couldn't find anything that worked