Thanks so much Daiquiri for posting the following on the forum:

NO TAX on almost everything in Zehrs and The Superstore Sat & Sun Sept. 5 & 6 from Open to Close.

Zehrs and The Superstore will pay the GST and PST on almost all taxable items. (Excludes: Purchases of alcohol, tobacco, prescriptions, dry cleaning, gas bar, lottery, postal services or purchases from 3rd party businesses within their stores.) Cannot be combined with any other promotional offers!

There will be no returns accepted or rain checks issued for taxable items during this promotion.

Yes, tax free days are back! Shop and save on all* taxable goods for two days only. In addition to Zehrs and The Superstore, Fortinos and Loblaws stores will also be participating.

No tax will be applied beginning today, September 5th, and through til tomorrow, September 6th, from open to close throughout all Ontario locations at the aforementioned participating stores. Residents living in British Columbia, Manitoba, Saskatchewan and Yukon can also take advantage of no tax at Superstore locations only and those living in Alberta, can save double the GST on their taxable purchases.

As a tip for all couponers, this would be a great time to redeem any FPCs (free product coupons) as well, where tax is not always included in the coupon.