So, by avoiding liquid calories, not only would you be eliminating one of the most common weight loss pitfalls (not to mention weight gain causes), but you'd also be eliminating one of the most common sources of sugar.
While you don't need to completely avoid milk like you should the above drinks, it would definitely be a good idea to keep it to a minimum (calcium is nice, but milk is still just liquidcalories) and / or go with skim or 2 % over whole.
You'll also be avoidingliquid «empty calories» from soft drinks, sugary juices, alcohol and other sweetened beverages (I'm looking at you powdered chai lattes).