One thing that bugs the snot out of me is when the internet functions don't work or work poorly. One click to get to the company's site and 15 minutes of fumbling around trying to do what you need to do. One of my pet peves is entering credit card information for a purchase. Every card I've ever seen has the expiration date on numbers like 09-05 but most sites make you use a pick list that has the months written out and the years in full 4 digit form. Let's just make it harder to be accurate.
