Consider making changes to your Department key layout
Use a Department key worksheet. List items that belong to each Department
All items in Departments must have the same tax status (either tax, or no-tax)
Once you've decided on the Department Key layout, make the changes
Here's a list of some common departments:
Grocery Health and Beauty Aids Dairy Deli Donuts Chips Soda Fountain Coffee Candy Oil Snacks Novelty Lottery Scratch Tickets Lottery Machine Lottery Paid Phone Cards Money Order Cigarettes Cigar Tobacco Lighters Beer Wine Automotive Misc Grocery Gifts Propane Pizza Chips Ice Cream Ice Water Soups Frozen Foods Baked Goods Floral Sandwich Garage Labor Garage Parts Car Wash Taxable Non-Taxable Energy Drinks Fast Food News Juice