2. Consider minimal accessories. By this I mean avoiding canes, hats that are not pinned to ones' hair or anything else that requires at least one hand's full attention. This may be counter to one's personal style, which I don't want to cramp or invade, but just think about how you will wrangle things. Things can get lost, stolen or broken, and really, you don't want to be having to keep an eye on things when you want to be dancing and relaxing. Further more...
3. Necessary objects. Things that really are required to be brought to a club, e.g. money, house keys, ID, a mobile for meeting friends or emergencies, maybe a spot of makeup, require secure holding. Gentlemen often have things easier here, as pockets that are frequently added to clothing of a more masculine nature can be utilised with ease, however if your clothing has no pockets a bag is then required. I personally favour a small rectangle bag that sits across my shoulder leaving both arms free. It's pretty secure, small and light, and doesn't require removal for dancing as it won't swing out and hit the Rivet-head next to you (a bad idea... XD). Considering investing in a bag that will work for almost every outfit (mine is in black with a red satin and black spiderweb lace.) so there is no fuss.
5.Respect your friends. If you are going with anyone else (something I recommend for safety) then respect them. If they are feeling less than perky then take them home. If you arrived with them then you should leave with them, especailly if sharing accomodation or transport. It's just respect and common courtesy.
6. Be safe. I could ramble on about the dangers of being out and about at night, but I don't want to scare or bore anyone away, so instead I'll just say remember to stay smart, aware and look out for each other. If you are old enough to go to nightclubs, you are an adult and deserve to be treated as one, so I won't patronise you any further by going into more details, unless that would be appreciated. Let me know. I've certainly had enough experience with creeps to last a life time.