Thought I would share,
I really hate the seeds and feathers that always end up in the floor.
I tried the seed guard for the bird cage but I didn't care for it at all.
So I came up with this. It keeps almost all the seeds and feathers out of the floor.
Less vacuuming for me!
I hope you can understand my directions.
Please remember only do this if you have the bottom grille in the cage.
Edit to Add
You can also use an adhesive lint roller the same way -- just roll it across the bottom of the tray. 
FaeryBee