Pathfinder Adventurer's Guild
Why to always multi-class
Multi-classing is one of the best things about Pathfinder. Unlike so many video games you never get pegged down a single thing if you don’t want to. You can play a swashbuckling cleric that can cast a wizard-y fireball or a monk that communes with animals as part of his devotion. While there are lots of bad choices to be made, the extra experimentation that comes with multi-classing is the best way to learn the game well and can yield some really powerful results like an orcish barbarian rage chemist that can get a whopping 32 strength for a few moments a day at 2nd level (for those that don’t know 32 strength is really high.) With the right choices the Pathfinder Gods will be helpless to stop you. Helpless I say! MWAHAHAHA!
Seriously though, single class characters can do some things really well, but if you have a specific vision in mind there is a good chance that multi-classing can get it done.