I need a word for a non-urgent, not-so-important task

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.)

Solution 1:

They're tasks that are put on the back burner.

Back burner [noun]

a condition of low priority or temporary deferment (usually used in the phrase on the back burner):

• Put other issues on the back burner until after the election.

[Dictionary.com]

The noun has been verbed, and attributive usages are quite common, for example:

• At Trump-Kim summit, human rights is a back-burner issue.

[APNews, 2018]

Solution 2:

Chore

What you have described fits the definition of a chore. This is defined as:

A recurrent and tedious task

[The Oxford Reference Dictionary 1986]

When I think of window cleaning, filing and other such necessary but non-urgent tasks, I think of them as chores. They have a way of piling up!

Solution 3:

A routine task is not urgent or important, but still must be completed.

Solution 4:

Idiomatically, you might simply describe such tasks as being on the list, or (in relation to a list held personally) on my list.

The implication being that you are aware of them and they are at least important enough to record, but that they are amongst many other tasks on a list, and will only be dealt with in turn, or at an unspecified time later.