Going Back to Onboard Graphics

Let's say I don't want to use my offboard card anymore and I want to go back to the integrated graphics. I know that I would have to remove the offboard card from my computer and uninstall its drivers, but what else would I need to do?

actually you might not have to take your card out and change the drivers, if you disable the offboard card and enable the onboard one in your bios, you should be set.
(by the way why exactly do you want to do this?)

Agreed. Why would you want to do this? And it's as hard as taking out your discrete card and loading the onboard drivers.

I'm telling you.... it's going to be painful.