Sippy Cup Update
First of all thank you so much for all the advice! I really appreciated what everyone said. It has only been two days but I have noticed a difference already. We tried a few new things. I think the biggest hit was a straw in a regular cup. Why didn't I think of that?! I also started up apple juice again. I give him that when we go on a walk or are in the car (once a day). Another thing I learned is he likes to hold the handles on mugs, so a straw in a mug works great.
Some of you mentioned fruit, that is something that he eats pretty well. So I know he gets some liquid that way. The last thing that I want to try is buying matching (or close to) water bottles. That way his will be just like mommy's (great idea by the way), but his. I feel a lot better about the amount that he is drinking. Thanks again.