If you heed the warnings to safeguard your passwords and logins, all of which you’ve made sufficiently complicated so as to be difficult to remember, you may be in the market for a better option. The Silex USB Fingerprint Reader will free up some brain space by letting you log onto your computer, unlock screen savers, activate applications, or access members-only Web sites biometrically, with just your fingerprint. The device hooks up to one of your USB ports to ensure your company and personal information stays private. At $150, it’s a spendier option than keeping track of your passwords, but adds a little James Bond style to your work day. And you’ll never forget your fingers.