Baby Sling

I recently watched a documentary on Channel 4 over here in the UK. If your from else where Channel 4 wont mean anything to you. Anyway the documentary was about comparing various techniques on tending to a new born baby. This included a method which involved carrying the baby around in a baby sling most of the time to another method that involved keeping the baby in a strict routine including time outside in a pram on its own. Did you follow any type of strict routine? where you stuck outside in a pram on your own?