5. Create a Refrigerator
This is one of the coolest life hack or survival tips you can say, keeping things cool is as important as keeping them warm depending upon their nature. With keeping warm you need to come up with ideas to store things cool and for that you need to create a refrigerator effect all by yourself with minimum things available. You need 2 pots for that one of them slightly smaller than the other, keeping things cool is very important as some lifesaving medications need to be kept cold. This is a very useful tip and you need to clearly see what things you need and how to use them. Watch the video and prepare yourself to fight and survive.