If you have a long grocery list, do you ever forget to buy things on it? This has happened to me so many times, and I am not always good about bringing a pen to cross off the items as I buy them.
This is why I now strategically write out my grocery lists. This is really only necessary for long grocery lists, because short ones are easy to use. The main thing that I do is to write out my list in sections. Because I usually shop at the same store, I am well aware of where almost everything is. I also know the order of the aisles, and this helps me create the perfect list.