Most places will haul off old ones free when you buy new.

Couches strip the fabric and cushions. Cut the arms off the whole short end. Split the back from the bottom. Split those down the center. Distribute to dumpsters or trash cans. One piece a week or whatever.

Matresses that arent pocket coils. Cut two sides bend the fabric back and remove it. Itll fit in a trash bag. Give the coil to a scrapper. It works good as reinforcing mesh in concrete if you split the top and bottom and you're being cheap.

Box springs contain nothing. Strip the fabric bust or cut the wood frame down to nothing.