A proliferation of bathrooms

Nerd moment of the day:  I spent part of the afternoon today cleaning bathrooms.  In doing so, it occurred to me that bathrooms in the houses in which I have lived since summer 2002 have increased exponentially as a function to each move.  The chart below illustrates this:

I started with 1 bathroom when I lived in Maryland.  We moved up to 2 bathrooms when we moved to Arlington, Virginia.  When we bought our house, we moved up to 4 bathrooms.  The dotted, yellow bar is the projected number of bathrooms in our next house.  Cleaning four bathrooms is a chore enough; I don’t even want to think about eight.