. Not all of them but some of them: Use systems, systems such as the alphabet with occupations. Consider how people could die with different occupations, airplane pilots is quite real these days, bankers, cooks, doctors, etc. Go through the alphabet a number of different times, looking at different occupations, considering how people can die. Consider body parts, what can happen to your toes so that you might die? What can happen to your feet, what can happen to your legs, what kind of internal illnesses can also happen? That's another system. Ages, from 0 to 100, consider how babies die, consider how one year olds die, two year olds die, three year olds, sometimes the ages are very close, 45 and 46 might be similar types of illnesses, that doesn't matter just invent another one. With younger ages it's very real, babies dying in the crib from what they call cot death, you have kids 6 or 8 years old getting hit by cars riding their bicycle. Different examples like that. You can think of the environment, right here where you are. Just try to figure out all the different ways that you could die, choking on your food at lunch, coconut falling on your head, airplane crashing here. All sorts of different things. Also as to environment, you could think of a trip going back home, consider the different ways you could die in each different part of the journey and so on.