When I was a teacher I got landed with a group of 6th formers and told to 'do something about finance' - and about 2 minutes warning
I got them to research the student 'loans' and then work out a budget that would not overspend for the length of the whole term
We split everything into essential, needed, wanted, luxury or some such thing
One boy had aftershave in Essential
at £30 a WEEK
he had a bit of trouble getting his budget to balance
Personally my total spend on aftershave is negative - I have several years worth of Christmas 'men's stuff' boxes - some of which contain aftershave
I can;t use it - gives me a rash