Make sure to include the unlock code for your phone, for the inevitable 2FA notifications that get sent when they try to log in to your accounts. In addition to

Make sure to include the unlock code for your phone, for the inevitable 2FA notifications that get sent when they try to log in to your accounts. In addition to usernames and passwords, don't forget answers to security questions like "What was the name of your first pet?" Something else I haven't seen mentioned here is a plan to transfer your work and/or clients, especially if you're freelance: who will take over your projects, and what info will they need for each client? After writing this you'll want to go over it in advance with whoever will be in charge of executing it, to ensure they understand what you've written.