Look on the Internet for government websites that have grant money available to you as an individual or organization.
Go to the financial aid office at the private school you are interested in and ask if there are merit awards, federal and state grants or discounts for siblings.
Gather all your financial information together prior to the application process. This will save you time and you will be able to make an educated guess as to how much grant money you are eligible to receive.
Know your deadlines. The application process is deadline oriented. If you miss the deadline for application submission, you may become ineligible for grant funds that year.
Apply as early as you can for grant funds for private school. Funds do run out. The earlier you apply the better your chances for funds.