If you send lots of test campaigns for your clients (which you should) then you'll love today's update. We've now made it easy to delete any test campaigns that might be crowding your interface from your account.
As we mentioned earlier, we were hesitant to give you guys this functionality because it provided an audit trail against any potential complaints, plus keeping a record of everything is just plain old best practice.
We think we've found a happy medium with the new approach. You can remove test campaigns from your account, but we'll keep an archive of everything on the server just in case. If you ever require this data, just let us know and we can chase it up in the archives.