It is an extremely important list in my opinion but dances between the motive. Sometimes it’s hiking, sometimes it’s nuclear bombing and sometimes a fugitive (I even felt Zombie Apocalypse). I think you should set specific scenarios and then try creating a list. For example, a person leaving his home to find a job in a new city or a person who is on a constant move. So you can think about what exactly matters and what does not. We are easily confused homo sapiens, we don’t need a big list of items that may come to our use, we need a list of items we may have forgotten but are very important to us. So, having a scenario-specific list is better. But I do like the list, it made me add a few more items to my almost perfect list.
When creating your plan, make sure that it can be used for the many different worst-case scenarios that can happen. Take a look at the different types of disasters that are likely to happen in your area and make sure you have a deep multi-scenario plan for each.Some people fall into the trap where they think that they are prepared, but it's been so long since they have checked in on that plan that they really don't remember it, or circumstances have changed that make it important to change your plan. For instance, you may have some food stored up, but have you checked the expiration dates lately?
Water. Water should be #1 on the list for every 72-hour kit; it is the most basic and most important thing you need to survive. However, storing enough water for you and your family quickly becomes a problem. The recommended of amount of drinking water is one gallon per day per person. One gallon of water weighs 8.34 pounds, so if you’re like me and packing for a family of three, 72 hours worth of water becomes 75 pounds of water—not exactly realistic to carry.
MOLLE organization systems are a great added feature for a BOB. MOLLE webbing is straps built into the outside of your pack that allows for additional gear and even other packs to be attached externally. If you have a sturdy pack with MOLLE webbing and carabiners, you can add a lot more gear on the outside of the pack that you otherwise might not have been able to pack inside your BOB.