FlyLady has a saying: You Can't Organize Clutter. Although you CAN organize clutter you're wasting your time. Your belongings have to FIT in the space available, in a peaceful unclogged manner.
Have 2 trash bags ready (black so you can't see through them to remove items).Take the Trash out immediately when the timer goes off, & take the Donate bag to the car immediately, so both are OUT of your home. You haven't decluttered until the items leeeeeeeeeave (cont'd).
Put the Keep items in a laundry basket, & before you go to bed go thru ea room dropping off items, & picking up anything that doesn't belong. Empty it B4 bed. Put small things that need to be glued or mended in a small basket by the phone, so you can do them during your next phone conversation.