creeping jenny for me. it was a terrible idea and sadly my back garden got neglected while i worked on the exterior and interior of my actual house. now it's in my back lawn and under my shed so i'm having a hard time keeping it from taking over. year over year it's been better, but i've been working at it for the past 5 years. one tiny piece and it's all over again in the spring.
i had lamium but yanked it this spring and so far i haven't seen any sprouting again so i'm crossing my fingers!