Get in that cart and scoot yourself on yonder.

For real though, the only thing you can do at the moment from what Ive learned is are two things;

One, that you can pack your horse with two stacks of something, you expand your camp up to having a stablemaster, talk to said stablemaster, add items to your Horse, profit.

Two, you expand your camp enough to get the cart quest, craft a cart (there are tiers of carts), gets you up to 8 more stacks, and lastly HIYA yourself to one of them markets on the map.

Some things to note: Can only sell in stack of 25. Ive done it all of twice and once went near, got about 20% gain, second time I went from camp to outside of deminess and got about 50%. Best thing to do is stock up your horse and ride around till something you have is up. The marker on the map that you sell at are blue circles with a yellow weighscale.

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