It seems that if you have to move from room to room whilst remembering even simple items, the doorways themselves can trigger forgetting of the crucial data.
Today’s invention is therefore a small recorder which can be attached to a door (for use within eg stockrooms or on board ships)
As you approach the door, simply say what your current task is eg “find the yellow-handled screwdriver.”
On emerging through the doorway, a speaker on that side would repeat the message, keeping you on track.
