Drink This: The easiest way to ensure that you'll stay hydrated is by keeping a big bottle of water by your side. Spice things up by adding lemon or cucumber wedges for a flavor boost.
Not That: For many java junkies, iced coffee is the ultimate Summer sipper. While your doc may very well approve a cup or two of coffee a day, make sure that you don't get into the habit of refilling your venti cup all day long and losing track of your caffeine intake.
Source: Flickr users gxgn and joesahfeen