Three hours without shelter, three days without water, three weeks without food. You've probably heard it a thousand times. It's the rule of threes - probably the oldest and most widely used mnemonic in the survival world. But your Pocket
Three hours without shelter, three days without water, three weeks without food. You've probably heard it a thousand times. It's the rule of threes - probably the oldest and most widely used mnemonic in the survival world. But your Pocket
