Lucy really does a good job with a regular cup all of a sudden! She only dribbles when she has to start tipping it way back. We've tried this a few times but this morning all the sippy cups were dirty, so I decided to give it a shot and see if we can start transitioning her now. I only have these plastic Christmas ones which I think are better for her than a heavy glass... I guess I need to break down and buy some kid cups now. She'll have a Kool-Aid mustache (or beard) this summer!