I'm going to Vegas with my girlfriends in December! We just booked the flights today and I'm so excited!
The last time I was in Vegas, my friends and I went to Coyote Ugly in the afternoon to check it out. We met a bouncer and he gave us free VIP passes for later on that evening. We went back and we git to walk right in. We've gotten into the VIP at Baby's by just by asking the doorguys what was going on in there. We got to meet Eminem!
But once you're in VIP, there are no ins and outs-not even to go to the bathroom!
If you want to go to rumjungle in Mandalay Bay and don't want to pay or wait in line, make dinner reservations for around 9-9:30. They won't kick you out after your meal, so you can stay as it turns into a club. Plus, they have an awesome dessert that is a book of matches, an ashtray, and a "lit" cigar completely made of dark and white chocolate!
It's definitely a HUGE advantage if you're a group of girls. Most any door guy in Vegas will let you in for free if you are really nice. Don't try to be supercool or shady. Just be nice and if he's cool, he'll let you in. (Especially if you say you're there for a special occasion like a birthday, bachelorette party, or someone's first time in Vegas)
Have fun!