Live Support
If you notice, every successful website has a good customer services and most have a live support system in place so customers can speak directly with a sales person. If you want to be successful to you will also need to develop your customer services making it clear and easy for your customers to contact you.
We have recently started using a live support script and just having it present on the server has given our customers piece of mind and has helped to increase our sales. Many live support scripts have some extra useful feature which allows you to interact with your customers on an even deeper level. You can now approach your customers without them having to approach you first, the trial live support script that we are using allows you to send unique messages to any user on any page. This feature comes in handy on your sales pages making it easier to contact potential clients and help them make a purchase.
If I had known about live support a long time ago I would be laughing as this script alone has helped produce even more sales than normal, firstly you need the traffic on your site before you can approach a visitor and if your like me and build targeted traffic streams then all the traffic coming to your site should be highly convertible with a bit of persuasion.