Pursue research that you truly believe has the potential to improve life. Knowing you are working toward something more than just a degree can help you find the drive to make it through the difficult or dry aspects of your time in graduate studies.
Your time in graduate studies will provide many opportunities, but don't lose touch with yourself. Take the time to do what you need to in order to maintain your sense of purpose and direction, then live out of that. Don't be afraid to try new things, but remember that no one can do everything. Be selective.
Absolutely take the time to reach out to current students, alumni, and faculty members affiliated with the grad programs of consideration. Your grad school experience will very much be influenced by the people you are surrounded by during your education and the culture of the program. Hearing from other's experiences and talking to current students is one of the best ways to find the right fit for you.
When an airline asks you to sign a waiver for your guitar just scribble quickly in hard to read handwriting "no thank you" and hand it back. Later if they damage your equipment you can claim you did not understand why they handed that waiver to you.
I came from a small town, so when I first moved to Guelph I was kind of intimidated by the transition due to leaving a rural area to come to a city. I have lived in Guelph for almost eight years now and even though it is a city, it has that small town feel which I like.