UI enhancement: could the new "Completed" mark go elsewhere?

[Marcool04]

Hi there,
Just thought I'd drop a note to say thank you very much for implementing the "Completed" feature that had been requested here #534
I find myself making a stupid mistake over and over again though, on the Web interface: when I set up a due date, I have the reflex to want to "confirm" my date choice by clicking the nice check mark to the right of the date field, and that is in fact the "Mark as done"... So I end up not getting notified because those tasks are considered done.
I wonder if it might be possible to put the "Completed" button somewhere else? Maybe nearer the top?
Just an idea, I know you probably have many other things to work on.
Thanks for the great plugin!
Regards,
Mark

[alexanderdd]

Same happended to me multiple times already: I clicked the "done" button to confirm the due date...

Somebody with UX knowlede/experience is needed here. I think it makes sense to have "mark as done" close to the due date because it is related, but it has to be designed in a different way, not sure how..