I shredded all the paperwork I had about 5 yrs after my ex left. It was to be a cleansing. Getting rid of the old Paperwork we shared as well as some I had that was older then my youngest child, and some that was my moms who died 12 yrs ago.
I have a straight shredder rather then a cross cutter. I was afraid to throw all that paper in the trash since it would be easy to put it all together ( WITH SOME EFFORT). Sooooo....
Who Knew I could make the IRS and all their paperwork , WORK for me! LOL
I have since mulched my bank statements as well as newspaper and junk mail.