Another item that only gets purchased when traveling is bottled water. I support home town companies, so my bottled water of choice is Dasani. I usually buy the 20 ounce size for $1.06 with tax.
We've all heard that bottled water is 99% profit, but what does the water itself actually cost? I decided to grab my most recent water bill to find out.
My household consists of myself, my wife, and 3 & 1 year old children. Here is a typical month's water usage and costs:
Fully allocating sewer services into the cost, a gallon of tap water = $ .00784. Yes, a gallon of tap water is less than 1 cent.
How does that 20 ounce bottle of Dasani compare? Dasani is $6.78 per gallon, so its gross profit margin relative to my cost of tap water is 99.9%.