If I were having a big house party that I had to clean up after, I'd hire housekeeping, to do the cleanup/dishes/vacuuming etc before I spent money on a 'planner'.
I was coming back in to say this, too. Except I'd pay someone to clean my house before a party, too.
Yes, I did for my wedding. She was really hired to help me with loose ends and then to create the schedule for the day of and keep everything going. So worth it. The rest of the planning I did on my own.