I like to mix things up, Ill drink water from home in my water bottle, or drink water from the water cooler on every third hole. I've tried different additives to put in water but never really liked anything so far. I am open for suggestions though. Gatorade and the like never sets well with me for some reason. Now if you do want to open this up to what I buy off the cart when it comes around.............
and @Double Mocha Man, used balls are always hit or miss, usually a miss. You're usually better off getting brand new balls, even if they aren't premium. Used premium balls are waterlogged and only God knows what has been done to them. I used to get ProV1 and X balls used and they never performed well; ball speed would be down a lot. I've seen balls near 10 mph slower than a new ball.
Ever since then, I never buy used balls. If you're wanting to save some money, I highly recommend the ProV1 and X PRACTICE balls; they are the same premium ball, but with only appearance blemishes. I use them at home on the simulator.
Performance issues with a ball are not always visible to the eye.
I just got my batch a few weeks ago i got 120 of them I think only one or two had any sort of logo on them it. Obviously differs each order but I doubt there'd be enough of them for you to be disappointed. Maybe 20 or so had a scuff on them while I only had one that was bad enough to keep it out of my bag. For the most part they're simply in there because someone put an alignment line on the ball.