Whoever solves the riddle by finding the location of the missing item wins 20 tokens

                                        Clues:

1. The yellow piece of paper was torn off from a yellow notepad in Car A along with many other yellow pieces of paper
2. The bundle of yellow papers were shoved into the passenger seat back pocket in Car A
3. The passenger moved to the driver seat.
4. The passenger retrieved the stack of papers from Car A and put them on the kitchen counter top except for 1 page
5. The stack of papers spent the night in the kitchen.
6. Monday morning the passenger brought the stack of papers up to the Library and set them on a chair
7. The passenger took 1 page and brought it to the Computer Room
8. The passanger went back to the Library and re-organized the stack of papers on The Desk
9. The passenger went to the Mail Room, back to the Library to use the printer, then back again to the Mail Room
10. The passenger went down to the kitchen with a stack of items
11. The passenger set the stack of items on a Table
12. The passenger went back to the Computer Room to retrieve an additional stack of items
13. The passenger set these new items on the kitchen counter
14. The passenger put on their jacket, grabbed the kitchen items and grabbed the items on the table.
15. The passenger sat in Car B and put the items in the passenger seat
16. The passenger went to the bank, post office, and liquor store.
17. The passenger returned
18. The passenger went to the Library to retrieve the yellow piece of paper...... and he could not find it on the chair! Help the passenger find his paper.

You can ask yes/no questions as additional clues. Good luck!