No No No.  I appreciate the effort to show what you believe is a solution.  But it's not.  

We need a clean and simple report of Payments and the Invoice Numbers they paid.  Like the attached, except without the Workaround of having to co-opt the memo field with manual entry.  That's what we're all doing and it stinks - makes Memo unavailable for it's intended use - and involves double entry - and with double entry comes the possibility of mixing up numbers...