Just list on your someday/maybe (s/m) list what you think should be taken care of. You don't need to box them. You can sort them by type of item, by room, by section of room, etc. For example, I have "clean attic" on my s/m list. I know I'll make that active when I have the time and energy - it's not stressing me. If its a mountain of stuff, you'll feel better once you have identified it as something to take care of and once you know you are continuously processing some of it. Pick the stuff you need to do first (ex: gather all mail and sort it; gather all newspapers and recycle; gather all clothes and put for laundry; clear the top of the dresser).
My mountain of old business boxes has become a hill and is taking up less space in the garage. I take care of a box weekly and it feels good.