Sometimes we either don't trust a product or for some reason, we cannot fit in a bill for a yearly anti-virus subscription. In this case, we might go for a free trial. Well, two popular trials that exist today involve a 15 day one with Webroot and a 30 day one with Avg. Both don't require a credit card. Does anyone view one as better than the other? Does anyone know of other free trials besides the ones I mentioned?