Do you use Aweber? Just a few killer tips here.
Delete Duplicate Subscribers from your List
I know some of you have the same person (email address) in more than one Aweber list. Why? Because you probably use more than one opt-ins and offer different resources/downloads as part of opting-in. So, after they opt-in they get added to a separate list with different follow-up series.
In certain cases, you have a reason to keep them in multiple lists because each list has a totally separate funnel journey. In other cases, having them on the same or multiple lists makes no difference so you may consider removing duplicate addresses. Remember, Aweber charges for the total number of subscribers in all your lists without looking at duplicates.