I decided recently that I don't drink enough water during the work day. I always bring a huge refillable bottle with me, and then take only a sip or two.

Any ideas on either how to make a homemade drink mix that is tasty and healthy, or are there any good alternatives out there (say at Whole Foods or something)?

I have done the whole throwing in a lemon/lime/orange and even mint in, which is good but am looking for something with a little more flavor.