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The Math Behind Costco's #1 Selling Product
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Did you know Kirkland Bath Tissue is Costco's BEST SELLING product? They sell over 1 BILLION rolls a year. There's a reason for that.
30 rolls, 380 sheets each, for $22.99. That works out to about 77 cents per roll. Compare that to Charmin Ultra Soft at $1.50+ per roll at Target.
But here's what really matters: it's actually GOOD. Soft, strong, doesn't fall apart. My family tested it against Charmin and honestly couldn't tell the difference.
Switching saves us about $45 per year on just toilet paper. It's not glamorous, but these small swaps add up. That's the whole Costco philosophy — save a little on everything, save a lot overall.
Pro tip: The 30-roll pack lasts our family of four about 2.5 months. Buy it every other trip and you're set.
Posted Mar 28, 2026