We always pack a garbage bag (or two) to keep our dirty laundry in. It helps keep the luggage from smelling and it is really easy to separate the clothes and throw them in the washer when we get home. I just stuff the bag in the luggage the day we leave and it doesn't take up any more room. It also keeps clean and dirty clothes separated!! We always bring a portable fan as well. I can't sleep without white noise and this seems to help. I also bring a small collapsible tray to keep pocket stuff in at the end of the day so we know where we put everything in our pockets. We go around Christmas time every year and the weather is unpredictable. One year we were in shorts and the next we had to buy hoodies and gloves in the parks. Now that I have learned my lesson I will pack my own jackets and gloves just in case. We also bring a blanket that zips into a bag since I am in a ECV and can get quite cold. I will put the blanket over my legs and stay warm that way!!! I also bring a power strip because there are never enough outlets!!! Just a few tips that I have used!!!