The Dolmus is most probably the most effective way to get around,its basically a Minibus that will normally stop if you put your hand out along their route.
It may get a little crowded sometimes but inexpensive and easy, either pay the driver on getting or Off.
Prices from Oludeniz at the time we were there June2010:
There are mini buses around that take you to local places....all you do is ask the driver is he going to a certain place and he will say yes or no. The buses are small and not airconditioned....but that is ok because distances are generally not long...
also, you can get a taxi, but many taxis are not airconditioned either......