What would you do with $15000

My last P.F post gotten way more attention than I would have anticipated but I’m grateful for the advice that everyone had to offer. I’m planning on getting an apartment next month with my girlfriend who will be moving in with me. I’m saving up for a car right now as well but figured I’d ask you guys what you all would do with the money since I don’t know much about investing and (in my opinion) I’m doing everything right.