The ability to add tags to users for future filtering/marketing automation purposes.
Creating Tags for when a contact is to be sent to a 3rd party application such as Mailchimp would be ideal if not almost necessary. Mailchimp recently changed to one list for the free acount and in order to have multiple lists it jumps quite a bit. They work off segements and tags. If we could send the Campaign or Location along with a custom named tag(s) or tag according to the trigger then that would be great. In Mailchimp we should be able to send an email automated campaign with the "tags" as the criteria, allowing us to select a first time login or a 3rd time login along with the campaign or location.
I think this is a great idea