>>7955851. For fishing, need a knife for the lines and the fish.
2. Setting up a fire for barbeque, need a knife to collect birch bark, to take down dead-wood and split it.
3. Prep food and utilities, like roasting sticks and similar.
4. Random jobs, like removing tiny splinters or digging out an arrow from a tree trunk.
I use a single puukko folder for all of these tasks and since it's so handy I just carry it in my jeans everyday.
