t.taggings.since(Time.now)
NoMethodError: undefined method `since' for #<Class:0xb6f65f34>
        from /home/mmmurf/mailsender/vendor/rails/activerecord/lib/active_record/base.rb:1334:in `method_missing_without_paginate'
        from /home/mmmurf/mailsender/vendor/plugins/will_paginate/lib/will_paginate/finder.rb:87:in `method_missing'
        from /home/mmmurf/mailsender/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:164:in `send'
        from /home/mmmurf/mailsender/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:164:in `method_missing_without_paginate'
        from /home/mmmurf/mailsender/vendor/rails/activerecord/lib/active_record/base.rb:1495:in `with_scope'
        from /home/mmmurf/mailsender/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:164:in `send'
        from /home/mmmurf/mailsender/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:164:in `method_missing_without_paginate'
        from /home/mmmurf/mailsender/vendor/plugins/will_paginate/lib/will_paginate/finder.rb:87:in `method_missing'
        from (irb):5