I'm a fan of Las Vegas. In my experience there are many ways you can improve your visit with some key pointers. I thought I'd start a Branch conversation with a few of my Vegas-going friends and see what we've learned.
I'll start: skip the cab line and take a black car from the airport. Don't make a reservation before hand; just go to the limo exit at LAS. This will cost you like 2x a cab but it's money well spent on a relatively inexpensive luxury (by Strip standards.)