you're welcome

Also,

don't mention it

. No thanks are needed, I was glad to do it. For example,

Thanks for picking me up.—You're welcome

, or

I appreciate what you did for Mother.—Don't mention it

. Both phrases are polite formulas for responding to thanks. The first dates from about 1900; the variant was first recorded in 1841. For synonyms, see

forget it
no problem

, def. 2. Also see

welcome to