We used to waste a lot of coffee, but not with the Keurig. We get 2-3 cups per pod. I like mine stronger than hubby, so I take the first cup (using the middle button for mugs) and he takes the second. Sometimes, if mine gets too cold before I drink it (sometimes get busy and forget it), then I just put it back under the dispenser and use the small cup button for a warmup.
If I have somewhere to go early (like to a breakfast meeting with the gals, lab work, etc.), then he can make his own one cup when he gets up. He will usually add a little cream if/when he gets the first one. Otherwise, we both take it black.