then the attorney-in-fact or agent shall have the power and authority to make gifts, in any amount, of any of the principal's property, to any individuals, or to organizations described in §§ 170(c) and 2522(a) of the Internal Revenue Code (26 U.S.C. §§ 170 and 2522), or corresponding future provisions of the federal tax law, or both, in accordance with the principal's personal history of making or joining in the making of lifetime gifts. This section shall not in any way limit the right or power of any principal, by express words in the power of attorney or other writing, to authorize, or limit the authority of, any attorney-in-fact or other agent to make gifts of the principal's property.