What can I do if he doesn't help with anything when it comes to the girls?

I have custody of my two girls, 5 and 6 years old. Their father blew them off all summer. Now, he only comes and gets them when it’s convenient for him. I have to drop off and pick up my children. I have to provide everything they need while they go to their fathers (clothes, food, blankets, transportation). His truck isn't safe for a child plus he has a suspended license. He lives in a bad neighborhood, where he is trying to fix up an old duplex. He hasn't paid support in almost a year. He just lost custody of his son a few months ago. He doesn't take care of them. He has no working kitchen. The house is always being worked on. I have tried getting the support enforced but with no luck. I need to know what else I can do. I know custody and support are two different things here.