LO is 16 months. Lately, i love these 2 phrases:

"Not yours" has been a very effective alternative to "no". She puts it back right away without a fight! Well, except if it's a straw...then she gives me the saddest man in the world face.

"Clean up time!" She dropped a bowl of cheerios on the floor, and after saying the phrase she picked up all the cheerios and put it back in the bowl! She'll do it with most messes she makes.

Any "magic phrases" you care to share?