Macbook pro upkeep
Alright, so I'm in college and my Mac is only a year and a month old - it's been used pretty heavily lately and it's great and I love it. I had to download a "antivirus" through my school - it does nothing, it's pointless. My Mac has been kind of touchy lately, I cleaned up some files, my desktop, cleared start up things, installed updates I've been dragging my feet on. I almost made the mistake of downloading MacKeeper - luckily I came here first and found out about Onyx. When I went to their site, it brought me to this page http://www.titanium.free.fr/download.php so I downloaded all three things. Is that necessary? What do you guys use to keep your Mac beautiful?
MacBook Pro (13-inch Mid 2012), OS X Mavericks (10.9.1)