Louis Braille, who developed the "touch" system of reading and writing for the blind, was born this day in 1809. Today, the "touch" system is also making it easier than before to open entry doors, with numeric pads that replace keys. Tired of fumbling for house keys in the dark? Or looking for (and replacing) lost house keys? Keyless entry locks let you open doors by the numbers. There are a few basic types to consider. Some are mechanical wherein you punch in a code. Others are electronic and more sophisticated-- with multiple codes or multiple persons, and with temporary settings for guests and service people. Recent offerings also include electronic "keyless" deadbolts -- like the Powerbolt 1000 by Kwikset. And, if you want the ultimate in new lockset hardware technology, check out those with miniature fingerprint readers. They scan hundreds of stored fingerprints in a nanosecond.