You also get these wall papers (like table cloths) in all characters that you simply paste on full wall with cello tape or pins (the wall looks painted like Dora) and then remove it once the party is over - you can reuse it or use it in your kids room in a similar way later on.
It is always a great idea to tie down the balloons to chairs and tables - you can sprinkle some confetti to make the room sparkly - ofcourse the cleaning up is always a problem later on :(
I know this is not something you asked for, but I also made a fruit cake - not a cake cake, but fruit arranged as cake and it was a big hit with all the little kids and the big ones...parents. I did keep some cup cakes for all the children.