If I had the money...

 If I had 500,000, I would buy my first house. I would also pay my parents dues, give my mother in law a home of her own and give back whatever I had left to those in need.

 I would also give my little brother a little bit so he would not have to worry. I would make sure my family is taken care of before doing anything else with the money that is left.

 After all that I would get my friends gift cards or something that they need. I may save some or start a business but honestly I'm not worried about the money after all I got what I needed and wanted with it, while I had the money.