best practices - entries after final invoice

Good morning,

I have a few instances when we have a few stragglers of time or expenses that are entered in Timeslips after we've issued the final invoice for various reasons.  We don't plan to invoice for this time therefore it will be written off.  Is it better to make the client inactive with the time and expenses still unbilled or is it better to create an invoices with those entries as DO NOT BILL and just not send to the client before making the client inactive?

Thanks!