Resolved Question: what do you suggest packing for a three week camping trip? 10 points best answer?

I am going to a huge camping event, while travelling across three countries and staying with a foreign family, i dont need to take cooking stuff and a tent ect, because its all provided :)
im talking about clothes and sleeping stuff and QUANTITIES!
i am flying so i am only allowed 20kg! so no excessive quantities! :(
xxx

Source:
http://answers.yahoo.com/question/index?qid=20110721044427AA4xKyd

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