Tips for a Succesful Bachelor Party
Maintain a group size of 8 to 10 (or less) in order to be together all the time at group activities and dinner tables, since separation of group members often results to people getting into cliques and starting drama, which is generally not too fun.
The bachelor should be open about the number of people he plans to invite to the party. However, if these guys will bring more trouble than excitement when they are around, then it would be best to find a way to ensure they won't come.
The same is true for those who are included in the planning. First of all, there should be a number of people in charge of the important parts like the dates, main event or night out. Thereafter, the rest will join in to discuss what has been decided on.
If the "main bachelor party" will take place in a day/night, that will typically be: having dinner, going to a nightclub and/or pool during daytime, then a strip club. If they do not plan to go to a pool or club/strip club, they can still enjoy many other things.
Group members should not be too aggressive when panning activities for all hours of each day, particularly on mornings after the group comes from a drinking session (which is practically all mornings).
Most of the other activities should only be "optional". This means that though every person in the group is informed about the schedule, it depends on them if they want to attend or not.
If all people in the group have a cell phone (but some foreign visitors do not), group text chats can let everyone stay connected by staying on the same page. They should make sure, though, to set some privacy guidelines like "don't share this with someone else".
If the group is planning to have a theme - like in wearing matching outfits (no one likes it but can be fun) - they should be familiar with the dress codes, and be aware that a bunch of guys in clown hats and shorts can look annoying to bystanders.
A group that consists of guys shouldn't waste their time registering for pool as well as nightclub guest lists. The person at the door will turn them down when the group does not consist of the same number of girls as there are guys.
Having said that, even if they are not considering table service, they should at least compute how much it would cost. When they think about the cover charges, buying drinks at the bar and waiting in line, it is worth it.
There are lots of liquor stores within a few minutes ride from the Strip via an Uber or Lyft. It may be more practical to store drinks, snacks plus hangover supplies that can come in handy when inside the room, so that room-service will not be too expensive.