When I make task lists, some tasks are important, some tasks are urgent, and some are neither. I need a word to describe tasks that are not urgent, not so important, but can't be ignored because they really do need to be done at some point. Like filing of personal papers, or cleaning the windows.
I wish to emphasize these are tasks that aren't urgent enough to be called urgent or important enough to be called important; but they are not so little of either that I can just forget about them.
I'm also looking at maintenance task, filler task, staff task, or housekeeping task.
Note: The kind of task I'm talking about may be a prerequisite for some other task, then again, it may not be. Prerequisite status is on a different axis than urgency or importance; although if it is a prerequistite for something else, it has to have at least as much importance, urgency, or necessity as its postrequisite, and therefore might no longer be able to be described by the kind of word I'm looking for.
(As I usually do, I will wait 24 hours before selecting an answer to give enough time for everyone to respond.)