1. Node ForkyForky manages your cluster module stuff for you so you don't have to pull your hair out.
7. Node Domain MiddlewareMiddleware to attach your express app's request & response to a domain. No more process.uncaughtException nonsense.
9. Node LibpqSimple, low level native bindings to PostgreSQL's libpq from node.js
20. node-okaybubble errors back up your big ol' nested callback chain