I did 10 days with no power back when hurricane Alicia took out a good chunk of Houston’s power grid. Boredom was definitely at the top of the list. Surviving without power for 10 days was a walk in the park. Surviving without strangling other family members was a challenge. Fortunately I was young at the time and spent most of my daylight hours playing outside as I would have done on any other days. The nights however were long and boring. I consider entertainment items to be rational use of space and weight (within reasonable limits) in any kit designed for over 72 hours. A good thick book works well for me. I keep the FM21 manual and a thick but pocket-sized version of the SAS manual in my 7-9 day kit. I find that I can read them over and over and not be bored with them even though I’ve read them before. I think a good book is a great idea as is a deck of cards. If you have kids then you really have to think of something small and lightweight yet effective way to entertain them as well, or they WILL surely drive your blood pressure up once they start getting bored. I also enjoy whittling and I carry a knife 24/7 so I can come up with at least an hour or two worth of entertainment anywhere that I can muster up a scrap of wood (which is pretty much anywhere). Primitive living skills are also one of my hobbies/passions so that is helpful as well. If you have similar hobbies in that they don’t require a lot of special tools or gadgets or gizmos, that is helpful too since you can engage in those hobbies pretty much anywhere.