Another idea: Tactile and high contrast places to put commonly used (and misplaced) objects. I made these for my husband for Christmas last year using AstroTurf and picture frames of various sizes. I used foam ear plugs as 'feet' for the bottom.
Spouse was dubious, but now when he's feeling around for his alarm clock, nail scissors, glasses , wallet, etc, he knows he is getting closer to finding them because he can feel for the AstroTurf texture first.
The best part is these things don't fly off the surface when feeling around for them. Nothing worse than being blind and having to forage around the floor for said object.
$1