I keep an Excel spreadsheet to track the checks for each company. A long time ago, we had checks stolen at the post office when a guy would see corners of checks peeking out of a PO box. He would take them and cash them for himself. That was a mess.
About a year ago, we missed a bunch of June checks. I was wondering when they would show up, so I was going to write all the companies for a reissue before the end of the year so they would match the 1099s. . Turns out they were in a mail truck that was parked in Kansas until the Christmas season. The boxes at the back of the truck were empty, but not the rest of the truck. They showed up in December in the Christmas mail rush. Funny things happen.