Thank you very much. That was thoughtful of you. (来源：英语麦当劳－英语杂志 http://www.EnglishCN.com)
I know that you went out of your way. Thank you.
Thank you for helping us move.You were a big help.
We want to take you out to show our appreciation.
Your efforts were appreciated very much.
Without your help, the job would have never been completed.
Why don't you come by the house? The beer is on me.Thank you again for all that you have done.
One good deed deserves another. We will pay you back. You can count on it.
Your thoughtfulness should not go unrepaid.
Without you, it would have never been possible. Thank you.
Many thanks for the favor you did for me!
Please accept my most cordial thanks for your timely help.