Speedo Training I: Day 3

We're on day three now of this competition and I weighed in at 181.5 lbs this morning.  Not exactly on pace for my 2lbs this week.  I'm especially worried about this because I'm leaving for Las Vegas Sunday morning and I'm not sure if weight is one of those things that's supposed to "stay in Vegas".  I'm going to try pretty hard, but I don't know if there will be opportunity to eat well and I don't know how much time I'll have for exercise.  If I can come back Wed at 180, I will be very happy.