Science says this is how long your vacation should be
 

http://img-s-msn-com.akamaized.net/t...6&q=60&o=f&l=fWe all deserve a good vacation, but every seasoned traveler knows there is a certain point where happiness peaks and homesickness starts to set in. A new study from the University of Tampere in Finland has pinpointed how long your next trip should be to maximize enjoyment and return home refreshed.

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