Expecting that changes might happen, the framers of the Constitution gave the federal government certain implied powers. Implied powers are not stated in the Constitution, but instead, they are created under the “necessary and proper” clause using the expressed powers that they do have.
Nixon administration dropped 100's of bombs on north Vietnamese for 11 days straight, then negotiations resumed, both agreed to end war and bring peace in Vietnam.
Charg-it was the first official charge card in that it allowed users to withdraw funds directly from their bank account. Almost all cards by MasterCard, Visa, etc. today are credit cards, not charge cards.