How do i handle my lazy family?

I am a single mom with an 8 and 6 year old. I live in a 3br 2ba apartment. My brother and sister in law have twin teens and a 10 yr old. I work 40 hrs/wk, neither of them work. I get irritated by this, because they LOVE to watch their TV! He gets some form of disability, she gets major food stamps. They were in a place but had to leave on 4/1, so they are now staying with me. It's supposed to be temporary bc they are leaving to missouri in July. I can't stand having so much crap in my house. I can't stand all the TV they watch. I can't stand them being loud and boisterous til past my kids bedtime. And I'm hurt that my kids would rather hang with them than me. They are still here because they want the boys to graduate middle school before they leave. Well, we went to MO last week, it was beautiful. I want to move to but the jobs pay slightly more than half of what I make. Since they're on a fixed income, things would be better bc rent & gas are cheaper... But for me, I don't see myself giving up a little over $2000 in take home pay, even if my rent does go slighly down. Anyway, now they're over here again, moping around bc they would rather be in MO. The night we got back, I was so damn tired bc I did not sleep the whole way - 12 hours! Sis in law - slept the whole time! So, my son is walking around I'm hungry. I said can you ask the boys, I need to rest. No, I had to get up and cook for ALL of them while she sat her fat *** (we're talking over 400lbs EACH!!!) watching reality shows. They watch Storm Chasers, Swamp People, Storage Wars, American Idol, Yes Dear, Oprah, Jersey Shore, Extreme Couponing, Hoarders, and the list goes on and ON!!! I like watching tv too, but i mostly do it after the kids go to bed or on the weekends. And I admit, I hardly ever cook; me & mine eat out half the week. But i WORK ALL DAY! They do ****. And the week we were in MO, we didn't go to any festivals or parks, or museums, or local events... they made sure we knew where all the Wal-Marts were, though!!! I'm so tired of them. How do I get through this next two months? How do I deal with their bullcrap, their hogging the TV, their lights on at night, their ADHD kids, their depression? I'm so sick of it!!! I believe everyone should work, I don't know how they can be happy with themselves this way...