It's never fun to be reminded of terrible investments.

The other day, I was going through a rarely revisited desk drawer. There was this digital video camera I picked up in 2010 -- a solid model at the time and I got a great deal, including two six-packs of digital video cassettes. Very soon after that, I got the first of many smartphones with better video cameras than this tape-based thing. Let's just say that most of those tapes are still in their original packaging today.

Pondering that disappointing return on a seemingly good deal also reminded me of some mistaken stock investments over the years. I'm not perfect; Neither are you or Warren Buffett. That's right -- even legendary investing geniuses like the Oracle of Omaha make some bad calls. The trick is to learn something from each mistake and make slightly better decisions in the future.

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Source Fool.com