I give you one. Deutsche Mark was swapped 2:1 for EUR (two DM for one EUR). Back then the avg rent for a three-room flat was ~500-750 DM. The same property now costs you approximately 750-1,300 in rent and no, wages haven't adjusted accordingly. You can apply the same to groceries, fuel, electricity and other products. The inflation is 400% over 25 years which is now even being accelerated.
Every EUR you're holding is a EUR you shouldn't have.