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

Read also:

• Why all the fuss about Trump’s policy initiatives? Isn’t he just trying to set a moral tone for the Republican Party to make America great again?
• Airlines Scrubbed Cheap Fares After Getting Caught Charging Solo Travelers More—But Prices Won’t Stay High - View from the Wing
• Is it true that Jehovah's witnesses once thought the world would end in 1975?
• In Italy, how do people greet each other when they meet for the first time (e.g., on the street)? What's a good response to that greeting if you're not from Italy or don't speak Italian fluently yet?
• How do Greeks identify themselves in terms of civilization? Do they feel more connected to Western or Middle Eastern civilization and why?
• Is it safe to say that China is at least 30 years ahead of India?
• Why do men first look at a woman's chest instead of their face?
• Physicists create 'the world's smallest violin' using nanotechnology - Phys.org
• Fran Tarkenton on Jim Marshall: “He was the greatest leader . . . I’ve ever played with” - NBC Sports
• Raw Milk Is Trending — Here's Why Doctors Are Seriously Concerned - BuzzFeed