There’s only so many times you can forget something before realising that it’s not that important to you. So when we forget things which we feel should be important, it’s likely time to take stock.
Forgetting breakfast is one thing, but forgetting to walk your dog or feed your goldfish is another. If your responsibilites aren’t at the forefront of your mind, you have a priority problem; either you need to figure out what’s distracting you from what’s important, or go about discovering what important really means.