1. You can you just need to be out of stamina.
2. You may want to increase your brightness. Though this would be a nice idea. Purchasable lanterns that you can light and leave at places. Better yet smithable lanterns!.
3. What could work would having a sign that blacklists things that you as a business don't make. Ex: We do not sell: items made with copper or tin, weapons with normal grips, or pickaxes. Gotta keep the place classy you know?