Coffee Hoarding

I have a strange way of hoarding old coffee cups.  Even from the machines at work.  For your consideration, I present Exhibit A:

This is about a week's worth of coffee from the cafe and the vending machine.  The red cups are the morning cup I grab as I walk across campus.  The white cups are from the machine - and at least every 3rd cup gets reused on those days when I down the first one quickly.

Also, the white cups are from the auto-french-vanilla-cappuccino machine, not actual vending machine coffee - I do have some standards.