How changing your spending habits can help you save money

Discover how the Kim family implemented these expert tips to achieve significant savings by making minor adjustments to their everyday spending.

  • Financial fitness, like physical fitness, is about small, sustainable habits rather than quick fixes.
  • The Kim family trialled a ‘no-spend challenge’ to reset their habits and discover where their money was really going.
  • Their experience showed that small behaviour changes can deliver surprisingly big savings – and boost confidence about the future.

From skipping impulse coffees to trying a no-spend day, small changes add up to big results. The Kim family put it to the test and discovered just how powerful tiny shifts can be.

Financial fitness starts small

When CommBank personal finance expert Jess Irvine talks about “financial fitness”, she’s quick to point out that it’s not about cutting every luxury or sticking to a rigid budget. Instead, the focus is on creating small, beneficial money habits that can be sustained in the long term (like committing to a daily walk to improve your health). “It’s all those little daily choices that either move us closer to our goals or away from them,” she says.

It’s a philosophy that can be applied to any household. Take the Kim family, for example: Han, Vanessa and their two young boys. Busy, hardworking and juggling everyday expenses, they decided to test how a few smart adjustments, like cutting back on convenience spending and being more intentional with their budget, could put them on a better path.

The challenge: Pressing pause on spending

Like many families, the Kims noticed how quickly small costs (think takeaway coffees, cafe lunches, convenience splurges) stacked up. Han, who loves a spreadsheet, knew where the money was going in theory but admitted they often “made a budget we never really followed”.

Jess set them a “no-spend challenge”. For one week, they would track expenses closely, avoid unnecessary purchases and substitute habits that drained their budget with more intentional choices. Instead of daily barista coffees, they invested in a home machine. Instead of last-minute takeaway, they focused on meal prep. And to up the stakes, they trialled a Saturday “no-spend” rule, where, as a family, they would only do free activities.

What they discovered

The first few days weren’t easy. Saying no to little extras – especially social coffees or quick lunches – took discipline. But the family quickly noticed the benefits. They cooked more meals at home, packed lunches for work and even began enjoying the ritual of homemade coffee.

By week’s end, the results spoke volumes. The Kims found that interrogating and reining in spending helped them feel more in control. As Vanessa put it, seeing their spending laid out “gets us really excited, because it shows how easy it is to save towards our goals, whether that’s a piano for our son or a family holiday”.

The habits that stick

What worked? Meal prepping and making coffee at home quickly became second nature. What was harder? Saying no to social outings built around spending. But even then, they realised some catch-ups could shift to walks or playdates in the park.

For Jess, that’s the key lesson: you don’t need to overhaul your entire financial life overnight. By pressing pause, you learn which purchases you genuinely miss and which don’t add much value after all. “Saving money doesn’t mean cutting out every little luxury,” she says. “It’s about making smarter choices and keeping the things that matter most to you.”

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Published: 29 December 2025

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