|I use AVG the free version you can get here:|
I have used this for more than five years now because I don't like Norton or McAfee as the seem to be resourse hoggs and I do a lot of video editing.
At the same time though I do not browse objectional web sites. Actually have just a handful that I do browse often so I am not going to blow smoke up your butt and claim it is the best out there.
Practice makes perfect but only if you practice perfectly!