Pop-up windows are effective! They get in your face, grab your attention, and require action just to get rid of them. They can't be ignored and scrolled over like a banner ad on your site. While they do annoy some, most webmasters agree that the results of an effective pop-up window outweigh a minor annoyance.
Let's face it, some businesses sell "high ticket" items with enough profit margin that a few sales will do. Internet businesses don't usually follow this trend. So one of the KEYS to success on the net is driving HUGE amounts of traffic to your site. To do this you need TOOLS. And you need them to be FREE. Here is a step by step guide to what tools to use and how to use them.
It's been said that most web sales don't occur on the first visit to your site. If this is true, getting people to come back to your site should increase your sales dramatically.