How Long Did the Toothpaste Tube Last?

Wayne and I each like a different brand of toothpaste, so this is my tube.  I wrote "March 1" on it because I wanted to see how long it took to use it.  It was empty around the first week of June.

Therefore, now I know that it takes me about 3 months to use a tube of toothpaste.  So for me, just me, I need 4 tubes for a one year supply of toothpaste.  I assume I need that much for each of the other people in my family, as well.

My challenge for you:  The next time you open any new bottle of shampoo, tube of toothpaste, bottle of Tylenol, bottle of liquid dish soap, etc, WRITE THE DATE ON IT.  That way, you will be able to figure out how many you need to store for a year's worth.

(Thanks for the math correction, Janette!)