Board Thread:General Discussion/@comment-24041796-20131019024803/@comment-3157150-20131027035206

I'd recommend fighting Plantera a couple more times to try for more keys, then use Teleporters or a Rod of Discord to bypass a new world's temple barricade. Use the Key on the door, about as honorable as it'll get without the extra time-wasting of fighting the WoF, Mecha-bosses, etc.