Make sure to explore your employment options based on your status as an F-1 or J-1 student. Once you get a job, make sure you get a Social Security Number (if you don't already have one). And don't forget about your tax responsibilities.
Thinking of starting your own business? If you're an F-1 student on OPT, you may be able to become a self-employed business owner in limited circumstances. Unfortunately, this type of advising is beyond our area of expertise. So, if you're serious about getting a business started, discuss your plans with an immigration attorney who works with a corporate attorney. See international students and entrepreneurship for more information about your options while you are in F-1 status. You can also find information on the US Citizenship and Immigration Services Entrepreneur Visa Guide which itemizes US visa options beyond F-1 and J-1 status.