Admittedly, the two biggest parties I ever attended were (A) a work function - didn't stop a woman twice my age (I was 20) from getting drunk and hitting on me, but other than that people kinda behaved themselves because the bosses were right there.... and (B) a party I threw myself my senior year in high school when my parents went out of town for a week... we estimated ~75 attendees. That one... got kinda out of hand. There was lot of cleanup work. There was some dancing on tables and we got beer on just about everything, including some of my father's documents that then had to be thrown out and when he went looking for them a month later I said I spilled soda on them and threw them out because, while being an uncharacteristically stupid thing for me to have done, that was better than what really happened. There are a lot of stories from that night that would take too long to go into, but as far as recommendations go, I guess the lessons I learned from that night are..
1) Keep an eye on the keg so nobody steals the tap
2) If somebody steals the tap you can probably still milk a couple pitchers out of the keg by putting it upside down on two chairs with a gap between them and sticking a dowel where the tap goes.
3) Beer will get everywhere.
4) Clean beer up before it dries, on any surface. Caramelized beer is a fair amount of work to scrub off of a surface the next morning.
5) If you're making out with a girl on the floor, try not to roll over on top of your passed out friend.
6) If you are the passed out friend, awoken rudely by being rolled over onto, you can probably sneak away without being noticed.
7) But check your shoes first in case asshole token sober mormon friend tied your shoelaces together while you were passed out.
8) Try not to hit your head on a stucco wall as you fall... those muddy bastards are like horror house knife walls.
9) Rug doctors are surprisingly affordable to rent and quite effective.
10) No matter how obvious it sounds, don't try to melt a broken decorative candle back into one piece. It won't work.
... you know, I don't think much of that applies to what you're doing.