What are some other ways to respond to someone saying "thank you" besides "de rien" or "vous êtes bienvenue"?

Read also:

• What factors contributed to Taiwan's economic success compared to Mainland China, despite their close proximity?
• Why am I so jealous towards couples? Why am I tired of being single and feel my life is over?
• Can supporters of gun control explain the purpose behind a gun registry?
• Can they start feeding only one meal to prisoners on death row or those doing a life sentence? Because only then will it be real punishment. If they want extra food they can work or pay from their own pocket.
• Are rich people harder workers than poor people as a whole?
• Which Korean female celebrities look the best in a bikini?
• Why do we exist, and why are we conscious?
• Is it possible for the U.S. government to get rid of the constitution for national safety?
• Why are people nowadays so into anal sex?
• What great song was "ruined" once you really listened to the lyrics?