Thanks for everything.
I appreciate everything you've done for me.
As always thank you for the various things you do.
As always thank you for the many things you do.
Thank you for everything as always.
As always, thank you for the many things you do.
Thank you everyone for everything.
Thank you very much indeed.
Thanks heaps.
〈くだけた言い方〉 Thanks a lot [million].
Thanks for everything.
Thanks for everything.
Thanks again for everything.
Thank you everyone for everything.
Thank you for a fat lot of help.
You're a lifesaver.