QNSue ... The "paperwork-I-will-file-later" has been so and never affected life, has it. So find a box, and put the pile into it, and label it to give a clue with today's date. If you ever need something from it, you know where to go. The date will remind you how long it has sat from today ... and sometime you will decide it's time to just toss it!
As you would say ... Life's too short ...