Pattern abbreviation: CWT
Would you like to avoid tying a knot or adding on the secondary thread for chains when you start a new piece of tatting? It's easy! Simply wind the thread on your shuttle, but don't cut it. When you start your new project, the working thread for the chain is already in place.
The only precaution I suggest is that you either have more than one ball of your thread available or that you fill a spare shuttle with thread before continuously winding your shuttle. That way, if you run out of shuttle thread before you are finished, you won't need to cut off the ball thread in order to fill a shuttle.
Simple, but very, very handy.