Proficiency with navigator's tools lets you chart a ship's course and follow navigation charts. In addition, these tools allow you to add your proficiency bonus to any ability check you make to avoid getting lost at sea. Poisoner's Kit. A poisoner's kit includes the vials, chemicals, and...
The one exception to the one shop per item was pawn shops, which had such diverse merchandise they had to let people see it, but even then it was separated by a counter. You could easily create a spreadsheet or chart for pawnshops. The various magical shop inventories you find mi...