If you are a Walmart shopper, then use the Savings Catcher on the Walmart app. When you are done with your purchase, scan your receipt and the app will go out over the next several days and search competitor pricing for your products. If they find that someone offered that item for less, you will get a rebate for the difference in the form of a Walmart gift card (redeemable directly from the app.
Some subjects are much better paid than others, so although you may love the idea of writing about travel (badly paid) a better bet would be a niche like finance (much higher rates of pay). Check out the Pro Blogger job board for high paid freelance writing jobs – other places to look might be Textbroker or you can look at the “gigs” section on Craigslist.
Using a food delivery service can’t necessarily earn you money, but it can help you save you money if you constantly find yourself throwing out half the food you buy. Food delivery services send a box of food every week with new, sometimes unique vegetables, meat, fruit, and so on. If you don’t have time to shop and want simple meal-prep that leads to a good meal, a food subscription service may be perfect for you.