Big decision time? Best to sleep on it - Yahoo! News:
NEW YORK (Reuters Health) - When faced with a major decision, such as buying a car or a house, it's best to do your homework, and then forget about it for a while and let your unconscious churn through the options.
According to the results of a novel study published today in the journal Science, unconscious deliberation may lead to a more satisfying choice than mere conscious deliberation alone, at least for major decisions.
Conscious deliberation is fine for the less important, more mundane everyday choices like deciding which shampoo or towels to buy, but not for bigger decisions, the report indicates.