Thank you for the work on this. Got through the game really quick with this.
The purple birthday card in the second top shelf will also get packed.
Should probably say "second drawer" instead of top shelf. I thought you meant the white shelf, which had a different birthday card.
There was also a "jackalope statue" on the white shelf that's missing from your packing list. I didn't get the achievement or fade out until I packed this one.
There were times the directions were a little vague or missing details, but the game is straight forward enough that it didn't really matter too much. I do want to mention a few things.
To get to the attic, you'll be prompted to find a hook in mom's room. It'll be in the cabinet ("armoire").
The suitcase in the attic is hidden behind a secret compartment. To access, you need to find a box covered with a sheet. When prompted, remove the sheet to get a cutscene revealing the compartment.
In the motel, going straight to the pills did nothing. Based on one of the guides, I had to text Francine on the phone first, then put the phone in my pocket. Then interact with the pills to get a prompt to text Francine. That made the achievement pop.