This website has many helpful things on it for pawnstars.
http://www.pawnstarsthegame.com/pawn-stars-daily-trivia-answers.html
Free Parking Space
Go to a friends shop and press the + button for your spaces, it will ask you to pay 100,000 to add a space, confirm and it will not charge you.
You can do this for as many spaces as you need.
Working as of June 26, 2012.
Free Parking Space has been fixed as of June 29, 2012.
