Getting Fingerprint Readers to Read Your Prints?

crypticgeek asks: "I recently obtained a new job, and I'm already at my wit's end. Many of the doors in our facility have finger print readers because they are high security areas. No matter how hard I've tried, I can't get the system to read my prints very well, since they aren't well 'defined'. This means I don't have access to the areas I need to. I have to have someone else let me in to secure areas. I've tried using lotion thinking they were too dry, but that didn't work. In fact, most of the time my hands are really sweaty. Someone suggested I use nail polish remover and that would 'raise' the print, however I'm skeptical. Has anyone else had problems with finger print devices, or know of some possible ways of getting a better read?"