A decent hemorrhage kit should probably include a generous amount of bandages, a tourniquet ($5-$15), clotting gauze ($40), and some duct tape. You should read the manuals and consult an up-to-date first-aid guide, but the basic idea is to apply lots of pressure to any profusely bleeding wounds. This can be done with bandages, clothing, duct tape, or even your elbow, knee, or hips. Clotting gauze or sponges, when pushed into the wound cavity, can help stop bleeding more quickly and stabilize the victim. Tourniquets used to be frowned upon in the past, but when dealing with major trauma to a limb, they sure beat bleeding out to death; it's just that they cause some tissue injury, and if kept on for too long, necrosis may set in and the limb may have to go.
Freeze-dried food is nothing new. As early as the 13th century, the ancient Quechua and Aymara people of Bolivia and Peru pioneered a form of the process by exposing potatoes to the freezing temperatures of the Andes overnight, then drying them in the sun. In 1937, Nestlé used industrial technology to create the world’s first freeze-dried coffee, and in the 60s and 70s, the US military shipped freeze-dried food rations to the troops in Vietnam.
...what do I need to bring? How much can you realistically take with you when leaving by car, by bike, or on foot? What are the most important items, and will you be able to grab them quickly enough? To simplify things, would it make sense to maintain a small cache of supplies in the trunk of your car or at a friend's place - and if yes, what should be in that box?
Shelter. The usual combo is an appropriately-sized, waterproofed tent, a set of sleeping bags & pads, and possibly some compressible or inflatable pillows for comfort. In cold weather or during heavy rainfall, it's also possible to shelter in your vehicle, with Mylar blankets serving as a substitute for sleeping bags; and on a hot day, the same material and some rope can be used to improvise a shade. Again, the blankets are worth having in your car at all times.
Float Bag – If your adventures will take place on or near the water, it is a good idea to pack your survival kit in a float bag/waterproof bag, so you can prevent it from sinking to the bottom. Often, it will make the most sense to store your survival kit in a small carrying case, which is then placed inside a float bag, but you could just use the float bag if you prefer.
I also began to realize that I needed to prep for something that's increasingly as likely as earthquakes: large-scale civil unrest, which I witnessed a taste of in the streets that night. I began to think of how people act when they're scared, including and especially law enforcement. I started to think about home security, transportation options if fuel was limited, how to access information without the internet. I studied natural disasters and their repercussions around the world as a way to understand how to keep myself and my community safer.
If you worry about releases from chemical plants or overturned ammonia tankers, 3M multi-gas cartridges ($17) and half facepieces ($12) may offer robust protection when sized and fitted properly. That said, in most cases, it's more important to develop a plan for sealing your home; walk around and take note of any crawl space inlets, bathroom and kitchen exhausts, chimneys, fireplaces, and any other gaps. In an emergency, you can cover them with trash bags and duct tape.
Weather-appropriate clothing. A well-maintained stash of warm clothes, including waterproof ponchos and rain boots. In a pinch, you can also use metallized Mylar blankets ($0.80 a piece): tie them with some tape to make improvised rainproof, windproof, or thermally insulating clothing and hats, shoe liners, and more. The blankets cost very little and take up virtually no room, so I strongly suggest keeping some in your car. If you're stranded in an inhospitable place, they could save your life.