Costco Unadvertised Deals of the week starting November 26th! 26 Nov Posted on November 26, 2018Author Nadine 0 Here are today’s Unadvertised Deals at Costco – lots of great sales happening. I like this time of year because all the fun snacks and appetizers etc go on sale. These pics are from the Regent location in Winnipeg. Make sure to check out the Markdown Monday deals too!