We were tired of the Costco trash bags being left in the box and on the ground.  So I made this to make my pantry a little more organized.  I hope it helps you in the same way.  Attached to the wall with two screws of your choosing.

Printing Instructions:

3 walls / perimeters
.3mm layer height worked well.
I used PETG, but feel free to use PLA, ABS, etc.