Spearmint Rhino, ask one of the guys on the street to take you to Spearmint Rhino. They'll take you there in a limo and you will be able to get free cover and a free drink if you negotiate well enough. They get kick backs for every person that they manage to bring into any of the strip clubs.
Also ask bribe the front desk for a room upgrade. Just pull out a 20 or 40 per day and ask if they have any "free" upgrades available. There is literally no one there on a Tuesday. An upgrade is easy to get.