the suitcase of the crowdworking trip is covered with stickers, that stand for various experiences made during the trip, like typical souvenir stickers
Opportunity or risk?
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crowdworking can be like an adventure trip, if you learn how to travel the right way
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picture of a suitcase: http://www.corbisimages.com/stock-photo/royalty-free/42-28938058/studio-shot-of-old-fashioned-suitcase