This exercise in tracking the cost of various products that I usually purchase has really focused my attention on consumer prices. I know that gas prices change daily, but what about the price of other consumer goods?

Since the last post on Bona Hardwood Floor Cleaner, I noticed that the Costco had changed its price. Since the schools only teach about inflation (and not deflation), you may think that prices will only go up absent a sale or rebate. But, there I was looking at the sign and sure enough, Costco now sells Bona Hardwood Floor Cleaner for $11.99 instead of $12.69. No sale. No instant rebate. Just a straightforward price cut. Wow!

I’ve been using Bona Hardwood Floor Cleaner for a few years now. At first, I had a difficult time finding it at a local store that I frequent. The flooring stores were all out of the way with limited operating hours. When I found Bona at OSH, I was relieved. However, I really got excited when I found it at Costco.

So, OSH sells a bonus 36 oz. spray bottle of Bona Hardwood Floor Cleaner for $8.49, which is $0.236 per ounce. Amazon currently sells a gallon refill of Bona Hardwood Floor Cleaner for $23.99, which is $0.187 per ounce. If the product is sold by Amazon or fulfilled by Amazon, it may be a good deal since the purchase may qualify for free shipping or Amazon Prime. However, when I was looking a few years ago, I recall that a third party was selling the product on Amazon and the shipping costs were quite high. So, what does Costco offer?

For $12.69, you get a 32 oz. spray bottle of Bona Hardwood Floor Cleaner, a 1.25 gallon refill, and a microfiber cloth. Assuming the microfiber cloth is of negligible value, the Costco price is $0.066 per ounce.