There is an odd little known tax rule in Ontario where if a "meal" is under $4,00, then the Provincial Tax of 8% is not payable but the 5% Federal tax is payable. In an ice cream shop, one can have a single cone under $4 for 5% tax but 2 cones are 13%.
I just set up these few items under $4 as a separate item so a single cane can be 5% but if a
cone is included with other items then the whole sale is 13%. Never any complaints since no one likely knows the rule.
Not sure if this works with no tax rule on over 6 items. Might work for a few items but gets crazy when many items qualify.
Mel
