Board Thread:Casual Discussion/@comment-187.138.68.167-20130613150447/@comment-174.65.108.208-20150225011833

Max out your friends and visit daily. Add more through Facebook to go over the hundred limit of origin. Once you've picked up all friend prizes you will get a few donuts from visiting friends along with more cash and xp. When you've maxed out your regular levels you'll earn bonus donuts. You can earn xp by buying and then selling things back for cash. Bassmech20608  has a blog with great info.