From The Couples Institute I'm highlighting a handy reminder card for when my couples are first learning how to use the I to I.
Couples looking for tools - https://www.couplesinstitute.com/for-couples/
Clinicians - the institute now offers a "change lab" going deep on the Initiator Inquirer, if you don't want the full training but love the I to I like I do: https://www.couplesinstitute.com/the-initiator-inquirer-change-lab