You can always turn in late work*; I won't throw  away.  As I find time I'll try have a look at it (though spare time becomes pretty scarce at the end of the semester).

If, when it comes time to decide on your final grade, it looks like the late work could have an effect on your overall grade, then I will read it and include it in my decision.

*note I'll accept 1S1P reports, experiment or book reports and report revisions.  It is too late now to turn in Optional Assignments.