Seriously, guys, there are so many threads offering the same crap no one wants. Odds are, if you got it without too much trouble, everyone else has, too. If you don't want it, neither does anyone else. You have to give up something of value to get something of value
Things no one is interested in:
BOAR SNUFF - Easy to get, bulky, short duration. Unless you've got Q60+, it's not worth much. Duration is much too short for use in wall-smashing.
BONES - Unless you're getting Q200 bear bones, no one cares. HQ bones only matter for a few things -- claim poles and such are fine with Q10 bones from rabbits or whatever.
CLAY - SOIL - WATER -- It's all marked on the public maplib. Park an alt there, port your goods back and forth.
RUSTROOT - A lot of people have the stats to see/pick it, and it's pretty common. Some people want it, but don't offer it when you're buying goods unless the seller states a desire for the root or extract.
TEAPOTS - Shut the fuck up, gisewindblade.
Stuff that is actually valuable:
METAL - Iron, Copper, Tin, Bronze, anything. Everyone needs lots of metal. It's also expensive, be ready to trade a lot.
FOOD - The best foods to trade are Bear bangers, Deer Dogs, Pirozhkis, Buttered Cave Bulbs, Carrot Cakes, Raisin-Butter cakes (if anyone wants CHA), and **BAGELS** (Rings of Brodgar give 2:1 AGI/PSY FEP. Awesome.) Apple Pies, Bread, and Cow Chorizo are good, too, but CON food is more common. Butter can be a pain to get, and has value in large quantities.
BOOZE - Beer and Wine are essential for travelling now. Keep your village or claim stocked, and if you can't make it, buy it. Wine isn't as good, since it gives black FEP, but beer requires a tankard (made from tin) to drink, so there you go. Vinegar has some value, although most cheesemakers should have a supply by now.
LOFTAR'S LEMBAS - if you've still got some. It can only get rarer! HOWEVER, not everyone wants it, so don't expect to get a pile of steel bars for it.
SILK - Threads and cloth, please. Eggs are good to trade, but stop making new threads for one gender or the other of moths. They die or mate-and-die too quickly. Make a Moth Trading Megathread and just use that to exchange your little insect friends.
LUMBER (HQ) - Everything depends on getting good trees. If you've got high quality blocks and boards, they're worth something. Always use the best saw you can get when cutting boards. I'd rather use a Q120 bone saw for 4 good boards than a Q20 metal for 6 average ones.
FUEL (HQ) - If you've got an amazing tree (Q50+), your branches are worth something, although not too much, being infinite. High Quality charcoal is the basis for all metal production, and is therefore valuable. Don't forget - use good clay for your kiln, and good branches and blocks/boards to burn into charcoal.
TOOLS (HQ) - Stone Axes, Saws, Swords, Armor, Smithing Hammers -- anything over Q50 should be worth something. Remember, tool quality affects the meat/hides from animals, saws affect lumber, hammer affects everything you smith with it.
NATURAL RESOURCES (HQ) - If you've got Clay above Q60, Soil above Q96, or water above Q65, then guess what? You have something worth trading!
Fun facts : It takes over 200 loaves of Q20 bread (4 FEP) to get a new character to 40 Constiution (a good minimum for short-distance swimming).
It takes around 60 Agility to be able to teleport from the Ring of Brodgar to the invisible wall a the edge of the border grids.
It takes 50 Strength with a pickaxe to deal 1 damage per hit to a palisade! 190 Strength with pickaxe to deal 1 point to a brick wall!
Level X animal maximum quality - Fox : 40 --- Boar : 80 --- Deer : 100 --- Bear : 200 --- Survival + Tool quality for meat and hides, just Survival for bones.