Where to go from here

Well we are here at my Dad's truck unpacked and returned. Now I need a professional organizer to help organize my dad's house and make it livable for us all.....I look around and am very overwhelmed by the house. Everyone says tackle one room at a time....but that is hard to do when all the other rooms are staring you in the face. I did the girls room and we got it pretty well set up, so I feel good about that. I thought about a professional organizer until I found out what they charge....well I am off to tackle a room..UGGGGGG