My DH thinks all boxes should be kept. We have so many.....tv, computer,sewing machines. He also saves all the paperwork from every thing. I recently was cleaning out his files and found receipts from the 60's. My goal when I return home in the spring is to de-clutter our house. We will see if I can get away with this! So...keep them for the length of the warrantee....then bye- bye boxes!