Once you have your green card, here are some steps you can now do:
Social Security Card
If you have not already, you should apply for a Social Security card. If you were already issued one, you can update your status with the Social Security Administration (SSA) to remove the conditional language on the front of your card.
Obtain a state-issued driver's license or identification card
Apply for or update your state ID. This primary form of identification is useful for so many purposes.
Find a Job
As a lawful permanent resident of legal working age, you now have the right to work for any U.S. employer, in any field of your choosing.
File an Immigrant Petition for your Family Members
As a lawful permanent resident, you may now file an immigrant petition for your spouse and unmarried children to join you in the United States. It may take several months (or years) for a visa to become available and to complete the immigration process, but you may be able to get the long process started now. Consult with an immigration attorney to determine whether you meet the other eligibility requirements.
Register with Selective Service (if required)
All male lawful permanent residents between the ages of 18 and 25 must register with Selective Service.
Open a bank account and start building your credit history
Now that you have a social security number, it should be easier for you to open a U.S. bank account. You can also build your credit history by opening a credit card and using it responsibly. Working on your financial history early on can help you qualify for things you would like to obtain in the future, such as purchasing a vehicle or home, or opening up a business.
Explore and read about upcoming opportunities for U.S. Citizenship
After meeting eligibility requirements, you can apply for naturalization to become a U.S. citizen. This process typically takes several years, depending on your circumstances.
Learn about your rights and responsibilities
As a lawful permanent resident of the United States, you have certain rights and responsibilities. Familiarize yourself with these to ensure you are following the law.
Most importantly, enjoy the benefits and privileges of living in the U.S.
As a lawful permanent resident, you can now travel freely within the U.S., travel outside the U.S. with a passport, and enjoy many of the same benefits as citizens do.