HAVE: Dusty Miller, Maximillian Sunflower, Mint
I know, pretty run of the mill stuff but I just realized how much of this stuff I have.
Dusty millers root like crazy so if anybody wants any I will be happy to take cuttings.
Maximillian sunflowers are perennials that grow about five to six feet tall and get about two inch diameter yellow flowers all along the stem. I wouldn't exactly call them aggressive because if they grow where you don't want them all you have to do it pluck them once and they are gone for the season. And they are shallow rooted so they are super easy to pull up. They make about double of what you had there the next year.
Mint - Just garden variety. I have tons and I think unless I set my yard on fire I am stuck with it.