Async Trade Improvement

Listing items is something you do thousands of times daily. It becomes a chore and you get careless when listing.
I just sold my 30+ divs bow for 4 div because i did not notice the number input wasn't focused when i typed 3 in.
I understand that there is a grace period but it's no use if you did not realise that you made a mistake in the first place. It only helps if you change your mind.
My suggestion is that you add an OPTIONAL confirmation popup that appears when you click the "list item" button. I suggest it's implemented as something optional because some people might find this additional check unnecessary and slow.
Something like
Are you sure you want to list <item_name> for <amount> <currency_type>? Yes/No

Forgot to mention that this optional flag could be toggled on/off in the settings anytime.

Another suggestion is that we get a OPTIONAL notification similar to the one displayed whenever we sell an item via async trade. It reads something like:
You have just listed <item_name> for <amount> <currency>. Seeing this text on the screen would make mistakes pretty much impossible.