With me it was plane tickets. (Back when printed tickets were a thing.) I put them in the zippered pouch on the side of my suitcase. The night before I tore my room apart until 3 am before I looked over and noticed the zipper.
Whenever I have something that I'm going to need later, I'll try to put it in the place that I'll need it. Then I'll forget that it's already there.
Whenever I have something that I'm going to need later, I'll try to put it in the place that I'll need it. Then I'll forget that it's already there.