Hi,
today a girl told me that there's another way to say "your welcome", she told something like "thankankyou" this when replying to "thanks".
There are a number of ways you can reply when someone says 'Thanks'. eg
You're welcome
Thank you (with the stress on the last syllable. The meaning is that I want to thank you.)
No problem. (This is very common in informal, spoken English. Some people, including me, find it irritating)
There's also the choice, rather neglected these days, of just accepting the thanks and saying nothing in return.
Best wishes, Clive