There's an app for pretty much everything now so it was no surprise when my campaign to watch and record every dollar I spent found some high-tech support in the Apple App store.
My chosen app - iSum - has served me faithfully over the months as I note every expense, from a $1.20 can of soft drink to a $50 buffet meal.
The method in my apparent madness is to impose some financial discipline and stay under a self-imposed $35-a-day budget as a way to save more.
It wouldn't be possible to do this without iSum - think of the paperwork - but it is just one of a large number of free iPhone apps available.
To get a sense of the options, I checked out some other apps in the Apple App store.
The apps were rated according to how comprehensive their features are and their ease of use.
I wanted to use them in practical situations to get a real-world view - unfortunately, that precluded reviewing any Android apps as I have only an iPhone.
Still, one of the programmes here - Toshl Finance - is also available for Android phones.
And the criteria I use in these assessments can serve as a guide to readers who want to choose apps be they iPhone or Android ones. Whatever the choice, I hope that more young adults will download and use at least one app to start the healthy habit of tracking their expenses.