I have seen people using their 72 hour kits more as a convenience kit rather than a survival kit. They stuff their 72 hour kit with un-necessary items, which are just good to have and you can easily do without them for few days. I believe the main purpose of emergency kit is to help you survive in case an unwarned disaster arrives at your doorstep. In cases of disasters, such as earthquake or fire, you may need to evacuate your house. In such times, carrying your 72 hour kit along is the only way of survival until help arrives. However, stuffing the emergency bag with lot of unwanted item will make it heavy, which may cause difficulties to carry it along while vacating the house. Also, there are good chances that some necessary items may get missed in the crowd of luxury items. Therefore, it is advisable to make a priority list while including items. Please, let me know your suggestions.