Well your kinda right… In my opinion of course!  We always recommend our clients do a "quick clean" before a party and then do the big deep clean after it's over.  A quick clean would be dusting horizontal surfaces, running the vacuum quickly in rooms for those beautiful vacuum lines, cleaning countertops, decluttering areas, and wiping down the bathroom.  Hey I love cleaning so either way you choose is right.  This is really how I handle party cleans.  Happy Cleaning!