If you have the option of choosing your own loan services provider, especially one for your student loans, don't forget to shop around. Some companies offer nice incentives to work with them, including rate reductions and rebates after on-time payments for a few years or so.

If your financial circumstances change and you're able to easily make larger payments on your outstanding loans, then contact your loan services provider and see if they will allow this. Remember, some providers will slam you with high penalties for early payment.

It may be better to work with a loan broker rather than approaching specific lenders. Brokers will be able to shop around in the market for you, locating the best deal with a lender and/or loan services provider. You'll have to pay them, but they'll probably end up being a great investment.