I just started playing and I am running into a bunch of items. All have the recommended use sell but I am not sure if some are collectable. I heard that cards can be collectible but would there be anywhere to store them so they aren't cluttering my rucksack? Is there only one set of cards? I also have meth and pick handcuffs and a miniflashlight, dog tags and an ivory carving. Not sure if any of this stuff has any use.
You only really need to keep the animal pelts until you can finish your slings and p pouches, etc. After that you can sell everything. The plants come in handy in crafting syringes but they are so abundant you don't really have to carry a bunch of them. When you are ay a vendor and selling things you will see tje "recomendation" for what to do with each item.
"If a deaf/mute kid gives you the finger, does his mom wash his hands off with soap?" Hukt On Fonix Wrkt 4 Me
If the item says "Recommended use: sell" it is 100% vendor trash.
If it's for crafting (plants/skins), it depends. Blue and White plants are literally unusable early on so those can be sold. Red and Yellow syringes are situational and don't require keeping a lot of spares. Extra greens on top of any medicine is worth keeping usually.
As for skins, also depends on whether or not you need it anymore, now or later. Here's what each upgrade needs skin-wise (not counting the rare animal skins):
Weapon Holsters: -Goat x1 -Deer x2 -Shark x2
Wallets: -Pig x1 -Cassowary x2 -Shark x2
Loot Rucksacks -(first one is basically automatic Boar stuff from tutorial) -Tapir x2 -Dingo x4
Anything that comes from something annoying or semi-rare (Tiger, Bear, Shark) should be kept. Most other skins, if you can't immediately use them or easily get the pre-req crafts done, should be sold for space.