I'm always surprised by bad coffee at home given how easy it is to make medium quality coffee: buy a medium ground coffee from the supermarket that mentions somewhere Africa or South America, put in a cafetiere and wait 5 minutes.
And then what? You just made coffee for 5 or 10 cups but you'll only drink one or two. And you won't throw away what's left, so you'll reheat it later, maybe twice, maybe more.
And maybe you'll find it a little too strong the second time, so you'll add a little hot water to dilute it.
If you are willing to pay nespresso prices, you should be fine throwing out coffee in your scenario--yoh will still save money even if you always dump out half of it.
