As you can see then, there are TONS of things you can do to boost your online sales. Just a few simple tweaks can potentially gain you a whole 5% or more on your conversion rate. But there are also key principles to keep in mind. The MOST important principle is that of human psychology. It is learning what makes people tick, what motivates them, and how you can understand this in order to make a lot of sales. It means providing something genuinely high quality but also interesting and unique. Then you need to be able to communicate that uniqueness in a way that gets people excited. The bottom line is this: if people are excited about what you're doing and they're excited about your products… then you're going to sell.