Living On a Tight Budget

Living on a tight budget is hard to me, But if I follow some rules, I will feel more comfortable. First of all, I should make a list that I must need to buy before I go shopping, and I have to check what to buy in my coupons.
For example, last month I bought a big pack of dried cranberry in Costco. But before shopping, I didn't check my coupons and also didn't bring them. A few days later, I knew it was on sale. Second, I should always check my closet or refrigerator when I make a shopping list. Unfortunatly, I also bought two 11/2 dozen eggs on Sunday even though I had 11/2dozen eggs. Third, I should always be organized and clean my refrigerator and not fill it up with ingredients. You should never buy too many ingredients all together when you go shopping. You might throw away a lot of ingredients because they are rotten. Finally, If you go shopping after check everything, you might save your money, and also you have never ever make a mistakes anything.