How do you reply to "Thank you"?

I said "You're welcome" four times yesterday, when people thanked me.

I only say, "No problem" if someone asks me to do thing that I agree to do.

I do that a lot also.

"My pleasure" -- Chicago.

First of all the person who said it was rude is a whiny idiot to be avoided if possible.

If someone thanks you for a gift, "you're welcome" is normal. "No problem" wouldn't make sense.

If someone thanks you for doing something for them, you can sue either one, "no problem" being more informal.

I'm OK with 'No problem' in general but not in a restaurant or cafe. If I ask for a coffee or whatever and the waitress says 'No problem' I always want to pick her up by the ears and shake her and say "OF COURSE IT'S NO PROBLEM, I'M IN A CAFE AND I'M ORDERING COFFEE!!! How COULD it be a problem???"

The most common replies around here are: you're welcome, no problem and my pleasure. All are acceptable, and none are rude.

I normally say "no problem", but not always

If someone says 'thank you' for something I've done, going out of my way to complete,, then saying 'no problem' 'de nada', 'no worries' is actually belittling what I've done. At that point, I don't respond to 'Thank you'

De nada, not de nata !!...it means 'it's nothing!

Nata is cream!

Here in Wales we'd say 'Croeso' ([you're] welcome.)

Not at all. Don't mention it etc.

None of it is literal: we are dismissive of thanks - but miffed if we don't get them.

I would think the woman was being an AH but I am too polite to say so.

If you had said, "I should think so or Too right" she might have had cause to complain.

Your spelling is poor. Spanish "de nada". In the mid-west "You are welcome becomes You're welcome. In my area ?? Up yours !!

All these replies are acceptable and common. This women is just a snob or being awkward cause she doesn't like you. I'm from Northern Ireland over here people say no sweat. No problem is also common.