A friend and I have been doing this for days so I figured Id share in case no one else has tried it. First, find a cart or wagon that can be pulled and make sure it has an closed back. Next, find a farm or somewhere where there are some nice sheep , goats or anything else around worth skinning and selling. Back your cart up to a hill or cliff where you can walk into the back of the cart. Finally, skin and kill everything around and load up your horses and pile everything in the back of the cart. Leave for a town and have your horses follow. I must say, it's not intended and can get glitchy, but we had several pelts a piece on our horses and 6 or more sheep and goat skins and carcasses in the cart to take into town to sell. Personally, i hope they somehow implement this as a legitimate way to carry more to the butcher to sell. I hope this helps.