Shopping at a supermarket should save you money since you won't be eating out as much. But if you tend to overspend at the supermarket, try shopping at a store with less choice.
Photo by bark
You can try to spend less time shopping, but supermarkets have so many interesting things to buy. (That bakery sure smells nice, but you didn't plan on buying bread.) Smaller or budget grocery stores offer much less choice. That can be a downside if you need less common items, but for the basics, it's perfect: you're more likely to buy just what you need, instead of what you want.
In Australia, that leaves you with two main choices: ALDI or IGA. ALDI definitely has a more restricted range, so the tactic can work well. Pricing and range at IGA stores varies more widely (and for basics it's often a little more expensive that Woolworths, Coles or ALDI). Note that shopping at a smaller branch of Woolworths or Coles won't work out as well: in that context, it's often the cheaper products that aren't available.
Check out the link for other quick tips to avoid overspending.
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