When I stocked up last weekend, it wasn't just on groceries. I also bought an 8 pack of paper towels. I immediately pulled one out and put it on the kitchen counter on my paper towel holder.
I went about the rest of my evening, then the whole family hit the sack. The next morning, I found this in the family room:
To recap, one roll on the kitchen counter, plus one roll on the family room floor, equals two.