Hmm, it's starting to look like I need to use brush-on primer, sadly. My apartment is rather small (at least in the world of spray painting stuff), and the window probably isn't big enough for some of your suggestions. I don't even have a bathroom fan! I do have a fire escape thing outside my main window, but I actually haven't been able to open that window, ever. And it's very cold outside these days.
I guess I don't want to go outside because I'm a little self conscious, or something. I'm in NYC so there's nowhere to go where there isn't always someone walking by. Hell I'm not even sure if there's some law against spray painting outside or something, what with concerns of graffiti and all that.
I've never seen brush-painted primer, what's the good stuff? Where do I find it? I think I'd prefer gray primer.