One problem that I tend to have is in regards to slide cards. Specifically on campus, slide cards only work one way, and are slid vertically. Without paying attention, one can easily slide their card the wrong way, producing an error. One example lies in the 24 hour computer lab in the library. The slide card must be slid the correct way, or the door will not open.
Someone should redesign this system so users do not have to pay attention to which way they slide their cards. People are much happier when they don’t have to think, and when they don’t have to repeat actions based on user error. A slide card reader that can read from both ways would provide its users with a much more seamless experience– no matter which way they slide their card, it will be read correctly.