natural roach remedy

i'm really getting tired of seeing roaches in my place. well, i was successful in getting rid of the big ones but the small ones are a bit challenging. i know a roach infestation indicates that your home is generally dirty and unsanitary so i did my best in keeping it clean. at first it thought it was my fault but then i noticed that it was caused by some of the neighboring units. grrrrr. so what i did was, i used a lot of that chinese miracle chalk that repels insects (mostly ants & roaches) on the door frame to block them off (i was thinking jada pinkett-smith's demon knight style where she pours blood on door frames to block-off those zombies!!). it seems to work but i can still see some of them get pass the protective lines. i've tried every pesticide available on the market but the smell is really intoxicating and some say that i might even get cancer from it. yaiks!

you can usually tell if you have roaches if:
-you see the suckers.
-you find dead roaches in your cabinet, cupboard, under the refrigerator, or in plain sight. or alternatively, your cat keeps dropping dead roaches it finds on your pillow.
-you find roach droppings (particles of black grit, an oily substance) around the kitchen or in and around cabinets.
-you have a garage or an attic, especially a damp and/or warm one.
-you have a lot of open food sitting around, standing water (like a sink of dirty dishes), or if you let the garbage pile up.

and so i thought of getting a bunch of house geckos and let it loose at my place. house geckos are largely insectivores, but adults will consume spiders and other invertebrates, and occasionally juvenile geckos as well. they are strongly territorial and can be quite vocal at night, making a series of crisp, rapid chirps. they would sometimes wake us up at night by calling right above our bed. their color is quite variable, changing based on temperature and background. this might bother some of the neighboring units but what the heck. they were the ones who started it anyway! (grins) it actually worked at our house in batangas and we had amazing results. this is how the natural food chain process kicks in. the gecko eats the roaches and there you have it. they will most likely start to hang out in the open more as the population of roaches dwindles. so my plan is to catch some of these cuties when i go back to the province. oh sweet revenge!