Lol
Hmmm, seriously dude, someone needs to clean. I say it should be an entire family activity though, and not just on one person. I hate to say it, but before I moved down to Texas a couple years ago I lived in a similar situation while renting from some friends. The guy wouldn't clean up the house most of the time, and he even had his kid their on weekends and stuff. Weekends were even better since thats when the guys parents showed up to watch said kid. Me and the other guy that were renting rooms from him would at least try and clean and get the dishes done during the week, since clean dishes are nice to have for eating off of and such. But whenever the parents would show up they'd almost completely destroy anything we'd done to clean the place up. We're talkin people who can't understand the concept of using an ashtray for their cigarette butts, can't say how many times I went to wash a cup to find a butt in it. Don't know how many times I went to the kitchen to find the garbage can stacked a good 2 feet higher than the rim because they were too lazy to empty it. I'm just thankful that one thing we didn't seem to have there somehow in that situation was roaches, we'd get odd never before seen breeds of house centipedes though.
Now since I moved to Texas it's a different story, if you even let your cleaning go for a week or two you gotta watch out for em. The little pests are smart too, the few I've seen in my apartment will sit there and watch you, and they know when I grab the jug of home defense max to run like hell.. Kills the buggers within 5 mins if you get a direct hit on em.
As far as short time goes. Go buy a gallen jug of Ortho Home Defense Max, it's pretty to use, it comes with a sprayer attachment. Ventilate the room, and spray that around the perimeter, and around any doorways and windows. Also spray around or in any places where there may be holes or cracks in the walls or floor, such as floor heater vents. 95% of the time, they won't cross the area's where you sprayed, the other 5% of the time is usually the tree roaches that can fly, or some times in the area where I live for example you get those big palmento bugs(water roaches), those are a bit more resilient. And even those most of them that manage to walk across it end up dead anyway. Only other thing I can tell you, is that if your case is on the floor, find something to set it up on like a small bench or sturdy small table. Roaches like to get inside of computers and tv's and eat on the wiring and pcb's, as well as cause short circuits the computer is turned on with one in the psu. Be thankful you don't have fire ants though, they wreak real havoc on electronics, as well as people.