As for "What NOT To Do In Vegas," I'll add in that with #10, people need to be made aware that prostitution is actually illegal in the county that Las Vegas is in (Clark County) although it seems to be legal in the next county over which I understand is somewhere around 60 miles away.
And also, make sure to keep well hydrated, especially when it's hot. And be aware that both Caffeine as well as Alcohol are diuretics which will dry you out (dehydrate you further). Drinking them needs to be counted as 1/2 of the water amount that a person needs to be having on a daily basis. What this means is that for example 8oz. of Coffee should actually be counted as 4oz. of Water
And furthermore, don't get too Sensory Overloaded by all that is going on there between all of the sights, sounds and activities that are going on there!
In addition, people need to not get too carried away with consuming foods (such as rich, heavy foods) that can end up giving their body problems later (especially if a person has some medical issue involved).