How can you store your own?
From what I've read, there's a tradeoff with time prior to removal however. The earlier in your life you take them out and freeze them, the higher their regeneration factor is. The DPSC (Dental Pulp Stem Cells) should always be there as long as the tooth is alive.
After some brief research I concluded it was probably a waste of money for us as donors, but it's probably valuable to donate for someone else. I haven't yet asked our obstetrician whether that's an option.