As far as I know the store merchants have no chests (I guess because they keep their stuff on shelves, etc.). One method I use to overcome the lack of money that merchants have is to buy skill books and arrows from them (ones I need of course) which gives them more money, then I can sell more, and ...

Ok, so I had a lot of stuff I wanted to sell, but the merchants never have enough money. So, I went to an alchemy store (the miraculous mixtures shop) and bought all the ingredients, and finally sold everything I wanted to. However, when I was done, I realized that I had basically given the owner an...