We have buckets of measuring cups. It's a particular frustration. They lose their painted markings fairly quickly and it can be hard to tell the 1/4c of one set from the 1/3c of another set, or the 2/3c from the 1c or the 1c from the 1-1/2c. Why is there even a 1-1/2c? Uugh! Melt a 1/4c cup? Guess it's time to buy a fifth set of all the cups all over again so we can have at least one 1/4c. Don't toss any of the old ones just in case the 1/3c goes through the disposal.

We have two kitchen scales. I never get them confused. They're interchangeable.

Maybe get some metal measuring cups if the plastic ones keep failing on you? My metal cups have etched markings so they won't wear off