1. Pack Light. You only need one large suitcase, really.
2. Bring a laptop
3. SKYPE - cheapest way to stay connected w/friends and family
4. Start a Blog - another great way to let everyone how you are doing and it's usually free
5. Spend more time with the locals - afterall you are there to experience someone else's culture and life sytle right
6. Take trips and travel outside your host country - maximize your stay