i really only drink water. i know water is good for me but should i be drinking something else every now and then?

Water is the single best and most important beverage for you, and really there is nothing else that comes close to being as important as water. I too drink water solely 95% of the time. Occasionally I'll have fresh OJ or apple cider, once in a while I crave something carbonated like diet orange soda, and when it comes to social drinking, it's light beer for me. I don't drink coffee or tea, and I can't do any dairy, so even though I LOVE milk I can't have it. In my case, I have to take calcium supplements because of my lack of intake.

Having water as your primary beverage is a great thing, and for many people this unfortunately isn't the case. My husband is one of them, but I'm slowly trying to turn him around!

Water all day is perfectly fine. Put an upper limit on it though...perhaps 150 ounces unless you are working out in a hot environment? You can flush out too many electrolytes and wind up with "water intoxication" (aka hyponatremia.)