Technology has improved our lives and advanced civilization -- for the most part. But sometimes, inventions go a little too far. Here are a few unnecessary creations from the 20th century:
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(Laura A. Oda/Bay Area News Group)
Geocaching is a fun, free, GPS-enabled treasure hunt for anybody, anywhere, anytime
With more than 2.5 million geocaches hidden around the world, this GPS-enabled treasure hunt takes you to places strange and familiar, where the hunt is the treasure, the reward is the find.