Hey i just wanted to say that with the introduction of metal and metal working, would the Devs eventually put in canning your own food? It seems like a simple process... I even found a video about it xD
There can be canning machines found, (rarely) through out the urban areas, they require electricity so with the addition of the generators and gas it would make a great addition to the game. You would have to start farming early on and then you can make your own food storage for late game.
Also i'd also love to see a way to create a makeshift fishing rod from nothing but what you find in the wilderness. That brings up a new way of making string or rope, from vines or just from zombie's clothes. Anyway i'm sure these ideas have been posted before but i'm just bringing it back up.