When I go to work tomorrow, I'm going to take with me a ziploc baggie full of dirt.
You may recall that I have plants now. I repotted two of them a few weeks ago and since then the soil has settled into the pots considerably. Since I'm riding my bike pretty much every day, it's a little difficult to haul house plants to and from the office.
Oh, and I don't trust the dirt in the random planters outside my window. I've seen squirrels poop in it.

Maybe one day I will get an office . . . and a window. If that day ever comes, I will get plants, and also refuse to use squirrel poop soil.
And you will raise rabbits, and drive a recreational vehicle.
Perhaps I will need 2 plants.