We've been using the flow control helpers in async.js to help us with the nesting issue: (https://github.com/caolan/async https://github.com/caolan/async). We

We've been using the flow control helpers in async.js to help us with the nesting issue: (https://github.com/caolan/async https://github.com/caolan/async). We use the waterfall most, as it allows one to run an array of function in a series with a callback at the end of the series.