40. Save $100 per month Go shopping once per week instead of many times per week and shop with listing
If you go shopping once per week, instead of running errands all week long, you will spend less on unused groceries, you only spend on needed groceries and you save money on reducing travel costs, thus fuel and car maintenance costs.
Also, by using a shopping list, you reduce grocery spending by 30%, you only shop for the necessary rather than going around the store and buy items you dont necessary need. I don't shop up and down the isles at the grocery store hence I don't buy junk foods and useless calories. It's possible to save without really feeling like you've lost something.