Bring your favorite reusable water bottle and what you need to keep it clean
One major concern for travelers is water safety. In order to alleviate these concerns most travelers, including long-term study-abroaders, resort to only drinking bottled water. Don’t do this. Research the water quality in your host city and if it is acceptable for human consumption then do so. Bring along your favorite reusable bottle and use it to quench your thirst. If you’re concerned about the water quality or taste, split the cost of a water filter (for example a Brita filter) with your roommates at the beginning of your time abroad and use it as much as you can.
Avoid having things shipped and Pack lightly
The less you have to carry the easier life will be for you in general. The less you bring initially the less likely it is that you will have the need to ship things home at any point in your trip.Happy traveler, happy planet.
If you can avoid driving or using public transportation then do it. Walking will help you get to know your new surroundings and is an easy way to keep in shape.
Buy local food and goods
By eating food and using products that are local to your host country or region you are both expanding your pallet and helping the planet.
Bring a reusable shopping bag and use it.
This piece of advice is applicable no matter where you are in the world. Say no to plastic and do your marketing in a cloth tote. Bonus: most of these totes are easier to carry and hold a lot more than their plastic counterparts.