When I used mine (about 10 years ago)- so don't know if there has been changes...
When you enroll at school, they send info to the GI Bill how many units you are taking.. The checks either get sent directly to you or you can set up direct deposit. I had them go in to my account and you can use the money for what ever you want. I was getting about $800 a month which for me was like having a part time job.
