If your little precious has fallen in love with a particular teddy, toy or blankey, and refuses to sleep without it. The trick is to get in early if possible, and when the habit starts, cut the blankey in half and keep the other half for when the current one needs washing or gets lost. Or you can buy a few of the same blanket/toy etc, keep them hidden, then when the current one needs washing or is lost, replace with a new one and keep the cycle happening. If you start the switch early, they wont notice the changes when they happen and you'll have a happy baby — which we all know means a happy family.