My coffee filter holders sit comfortably and stably within ... I settled on a cluster of Hasami Porcelain mugs, their muted, earthen tones filling me with the tranquility of a stone garden. I have two ...

Your view of coffee mug stains -- like that other famous glassware optimism metric -- is also a litmus test for your view on life. Sure, maybe your favorite daily coffee or tea cup is tarnished.