I just purchased some contact lenses from lens.com. I seldom check the totals on online purchases because the computer does no make a mistake when adding up line items. As I was checking on my order, I noticed that this computer did make a mistake of $10.40 in their favor. When I called customer service, I was told that it was a "handling fee". This fee is not disclosed as a line item on your invoice, but rather with a minute asterisk next to the subtotal line. When I pointed that out, I was told that the web person was trying to "fix" that. These kinds of unethical practices give legitimate sellers on the internet a bad name.