By putting property into tax-free trusts dedicated for usage right after you are dead, you take that amount of wealth away from the estate and thus reduce the tax load your estate will have to take care of before it is divided amongst your family.
An example of a trust is the Revocable Living Trust. It is a trust that can be revoked by you anytime, provided you are still alive. Doing this will bring the valuables back into your estate, but it would allow you to use your assets in the event of an emergency. Revocable Living Trusts are a little more forgiving than traditional trusts.
No matter what kind of trust you are wanting, the professionals here at Marchese & Maynard are sure to have a solution for you.