I have a drawerfeull from the old days myself. Some have gotten tossed for the same reason Pomtzu has mentioned but most are still used daily. Love them for leftovers. And the fact that you can toss them in the freezer comes in handy also. I still have the celery container they had in those days and it's still doing a great job of keeping the celery fresh. I didn't even know they still had Tupperware parties.