Every Saturday, Jake's has a theme party. No surprise as most clubs do in SL. Once the theme for the next party is announced, friends start planning and figuring out how to get creative with their costume. Since I am a host, I also know what the theme is two weeks in advance. The tricky part for me is that I need to work on my costume before the photo shoot on Monday night while our friends have all week to get ready.
Shopping for the outfit can be pretty fun depending on the theme. Sometimes it's easy and sometimes it's not. Since I have been a host at Jake's for almost 2 years now, I have a huge folder in my inventory filled with costumes. I usually look in there for ideas and then see if I can recycle anything or come up with something completely new. Then it's off to do some shopping.
Sometimes it's nice to go to clubs that have "come as you are" night. The social aspect of going to SL clubs can be a lot of fun. Choosing to come in a costume and participate in the contest is an option that is encouraged, but guests should also feel comfortable to just go and "hang out". I do that when I visit other clubs.