One of the best thing about OS X...
I don't have to deal with two dozen different dings and pings, clangs and bangs like I do with Windows. It drives me insane hearing those sounds every time a window pops up. OS X has one and only one sound. And you'd be lucky to hear it most days. Such a relief.
So thank you Apple for not driving me insane with the sounds. Hopefully the guys up in Redmond will take note.