As well as "not needed after" a particular date, it would be helpful if we could distinguish the requests that are "not needed before" a particular date.

We have closed stack and offsite requesting and it would help to organise the requests if we could order requests that are not required today, tomorrow or by a particular date. It would be especially helpful to PRINT this date in the request slip so that it is obvious to staff fetching items and their supervisors delegating work.