Re: still bf, but does he need other liquids
congrats!! i think at this point you can do whatever you want in terms of milk or water. i would definitely add some liquid, especially since it's summer now. let him have a sippy/straw cup/regular cup of water at mealtimes for sure, and when it's hot out. i'd probably make that some kind of nutritious milk for part of the day. but it sounds like he's getting a pretty good balanced diet in addition to a pretty solid amount of breastmilk, so i think it's probably your call on what to do.
Nursing, pumping, cloth-diapering, babywearing, working professor mama with the awesomest SAHD ever.