Things clients have sent our accountants to help file their taxes

I work in a small accounting firm (although I am not a CPA). Every year leading up to April 15 (U.S. Tax deadline), I have to sort through people's random papers they've crumpled in a box all year, thinking "this might be important". Usually, it's not.
  1. 1.
    A vacuum cleaner manual
    I've also found Ikea instructions & chair assembly parts. I hope they were leftover.
  2. 2.
    Loose raffle tickets
    No note what they were for. Just two gallon Ziploc bags crammed full of raffle tickets.
  3. 3.
    Nine playing cards from four different decks
    I guess you could say they weren't playing with a full deck **ba dum TISS**
  4. 4.
    Expired Canadian hunting licenses
    A) wrong country, B) not helpful
  5. 5.
    Senior pictures of strangers
    Always cheesy, never useful.
  6. 6.
    A bee catalog
    You could buy a bunch of cool beekeeping gear!
  7. 7.
    Veterinary results about a horse
    It had a blank diagram of a horse and the vet drew the horse's markings on it. I didn't know they did that.
  8. 8.
    Clumps of hair and dust
    Gross, dude.
  9. 9.
    Expired Macy's coupons
  10. 10.
    Inappropriate birthday cards
    Saggy boobs and limp dick jokes. I'm glad I don't remember the exact wording, but the scummy feeling lingers on.
  11. 11.
    Aaaand the returns we filed for them the previous year, in the original envelope, unopened.
  12. 12.
    Helpful hint: if you get something in the mail that says "tax document" or "keep for your records", you should put it in that dusty box in the top of your closet. If you aren't sure, keep it, but know that you'll likely be charged for the man hours it takes for an intern to sort through your cell phone bills and old birthday cards.