Instead of paying others for goods and services, "pay" yourself for what you can do yourself. For example, if you have a small plot of land near your home, you can grow vegetables and fruits and then you won't have to pay the store owner for some of the products. In the same way, you can keep small animals or raise fish, if you have the conditions for keeping them. In other words, if you are a self-sufficient farm (even a small one), you can reduce your food expenses.

To put it briefly, if you want to save money, then instead of continuing to pay for goods and services, learn to "produce" these goods and services yourself (at least part of it). Often, the price of goods and services on the market is very high + tax. Having learned to do something yourself, you will not have to overpay and not depend on others. Even the banal ability to cook food will significantly save money instead of buying ready-made food (instead of fast food, cafes and canteens).

Another way is to make useful contacts, i.e. people who have useful skills. For example, car repair, household appliances, knowledge of medicine, etc. Any skill that can be useful to you and having friendly relations with them, you can get discounts on the services they provide. Also, you can find the right "supplier of goods and services" among your existing acquaintances.