Mac OS X doesn't have a registry to be cleaned.
Onyx can clear caches and whatnot.
This. And stay far away from CleanMyMac! Several serious problems have been reported. Here's just one thread on it.
I use ccleaner on my PC to clean up crap on my compter, is there something similar i can use on my macbook.
Thank You
I generally use a formulation made by Rain-X as it is ammonia free, very mild, and streak free. Some people use a diluted vinegar solution as well.