I’ve come to accept that “no problem” is just some people’s way to say “you’re welcome” but I still really dislike the sound of it right after I say thank you for something completely normal.

Cashier: “Here’s your change.”

Me: “Thank you.”

Cashier: “No problem.”

My brain: “Oh… I didn’t even think it could have been a problem to hand me my change, but I guess I’m glad to hear that it was not in fact any problem.”