Drop some Giants at the weakest defences, use one Wall Breaker (or two) if needed. If Clan Castle troops come out, use the lightning spell to take care of them.
Drop some Archers (spread out! About two archers are enough to destroy most buildings!) around the Giants to destroy all non-resource buildings.
Drop Goblins at the resource buildings, just a few are enough.
You should have about 50% by now, and quite a bit of resources. You can either quit or optionally give your Giants a Healing Spell, use some more Archers to support the Giants and use Wall Breakers to help the Giants make their way to the center part of the base.
When your Giants get to the middle part where the storages usually are, you can drop your final Goblins in. If you still have some Archers you can use those as well.
(No execution notes)
You should have earned a few cups and quite a lot of resources.