Mine!

I remember when Tom's cousin, K2, and her husband, D, visited two years ago, I asked if they had a different color pacifier for each of their twins. They laughed and said they didn't even try to keep from sharing the sippy cups and pacifiers...the twins just swapped things back and forth.

That's our new challenge: Konrad drinks from Natalie's sippy cup every day, and sometimes Natalie drinks from Konrad's sippy cup (she'll probably drink from his more often, when I start putting more than plain water in it).

How do I make sure she gets the liquids she's supposed to have, if I don't know how much she's drinking, because Konrad's taking a few nips, too?

The one bright side is that Natalie has been finishing her sippy cups and handing them to me to be refilled. I think she's finishing them on her own, but now that I think about it, how do I know that Konrad didn't drink the first half?