Well in my experience you don't want to alienate your apartment neighbors. Invite them, or let them know you're having a party.
Another thing to make sure you keep up on is alcohol levels. I prefer kegs, just because it's rare to finish one off in a night, and plus kegs really spell party.

Thirdly, if it's a "highlighter/blacklight party", I would consider replacing the front room or kitchen bulbs with black-light bulbs. Most of the time you can buy those at big convenience stores. Tell your guests to wear black-and white maybe to make things more dynamic looking.
Hopefully you have something that plays music, because partys have to have good tunes.
Good luck,
Cheers,
JONAS