Have you (you personally, or someone you hired) ever eradicated poison ivy from an area and not had it come back?

Please, only relate personal experience. Not a great article you read, or a terrific site you found, or what that guy three houses down did. And please, no lectures on how to do it in the greenest way possible (the vinegar thing does not work BTW).
But if you succeeded, or someone you hired succeeded, please relay how. Over the last two years I’ve had two separate landscapers try and fail (it came back) and before that I had at it myself and succeeded in suffering miserably for weeks, no matter the precautions I took.

If you used horrid toxins, and don’t want to incur the wrath of others, please PM me.

Thanks.