How often have you bought something and later found out that you forgot what you wanted to buy? And how many times have you found yourself buying things that you didn't intend to? This is a very common problem that most people have to deal with at least once or twice in their life. It's a very frustrating experience and the reason for this is that you usually don't remember what you want to buy when you're shopping. You can avoid this problem by creating a shopping checklist before you go shopping. The idea is to write down everything that you need to buy and then make a list of the items that you need to buy. When you go shopping, simply check the list that you created.