I always have one of these on hand. There are some marks and stains on my kitchen counters that regular cleaning just won't remove. Mr Clean Magic Eraser removes even the toughest stains like tea, coffee, crayons and even permanent markers. The only drwbak I have is it leaves a light film on my counters which is easily remedied with a quick wipe using a spray cleaner. If you have kids you have to a Mr Clean Magic Eraser.