Raise your hand if you have a measuring cup but you have no idea what amount it is since the lettering is rubbed off. How about one with the cracked handle? Or one that is a cute novelty design that is difficult to clean. I am a fan of keeping two sets, I often need two of the same measurement when baking. Yes I know you’d think I could rinse it out and re-use it. But, so many times I prep all the ingredients in advance so I need two. What I don’t need is a broken one, one that is impossible to clean, or one that gives the wrong measurement – I checked a set once and it was off by a lot! Of you have a few you don’t need today is the day to say so long.