I just put mine in a clear plastic sleeve that has a flap over the top so nothing can get in/out, then put in a 3 ring binder with hard covers, in a dry place, low humidity.
I'm not sure what happens to lamination after a few years. I would be afraid it would yellow/crack, depending on the quality.
Also take pics of it and store it on CD. If they are high resolution you'll be able to zoom in and see the type/codes with out disturbing the original build sheet.