Customer: “I am wondering: how long are the ‘forever’ stamps good for?”

Me: “They are good forever.”

Customer: “So, I can still use them when the rate goes up? I don’t have to throw them away?”

Me: “They are ‘forever’ stamps. They can be used ‘forever’, regardless if the rate goes up.”

Customer: “Oh, okay. I wasn’t sure what was meant by ‘forever’…”