They are from a company called stickman communications. Basically you have a set of fridge magnets with times in them and magnets you can write on with things you have to do which are colour coded into categories of how hard each task is for you. You then assign the tasks through the day making sure you schedule easy tasks in between more taxing ones. You can then look at the list and make sure you have a spread of tasks with time to recover after difficult ones.
I am terrible as I try to build Rome in a day but if you have the opposite problem it may help you to plan to get stuff done without getting overwhelmed.