My parents took out a student loan in their name to pay for my degree. I am not legally required to pay this loan, but I agreed to help pay half of the loan back to my parents. They are still making payments on it and the loan is accruing interest. My question is: what is the best way for me to pay them back? I have the money to do so, but I don't know if there are benefits to directly paying the loan company on their behalf, vs. writing my parents a check.