I’m standing in the dental products aisle at Target. I can buy 1x40M pack of Crest Glide Deep Clean Floss for $3.54 or a 2x40M pack of Crest Glide Deep Clean Floss for $5.99. I don’t even need a calculator for this one. Buying the value pack costs around $2.995 per pack.
Now, Costco sells a 6x40M pack of Crest Glide Deep Clean Floss for $12.99, which is $2.165 per pack.
Costco wins. 6x40M is around 787 feet of dental floss. If you use 1 1/2 feet of floss a day, that 6 pack will last you almost 1 1/2 years. So, while you will be saving 28% by buying a 6×40 pack instead of 3 2x40M packs, in terms of dollars, you’ll only be pocketing a difference of $4.98 excluding taxes.