Take out the garbage (food leftovers and so on) before sleeping. (this worked fine for me)
Clean everything as if your life depended on it, but don't get you hopes high. If they are already there is too late to rely on cleaning your room, as magamo said.
As Summer came, I noticed cockroaches entering in my apartments through the air conditioned system: chase them and find out where they come from...then buy traps!

Watch out for sprays and chemical stuff, if you don't use them wisely you could end up with other problems.

Zorlee wrote:

"Yeah, you gotta get used to them".
Well, I don't want to get used to them.

My friends said the same thing: "Japan is hot and humid you gotta get used to cockroaches". No way. It's not gonna happen. lol.
There is a reason why restaurant with cockroaches are forced to close XD
Do your best and let us know if you manage to get rid of them.

Forget about ごきぶりホイホイ. Evolution seems to have long since weeded out the cockroaches that fell for that stuff.

There's something called CoMBAT (http://www.kincho.co.jp/wnew/combat.html) that seems to work better somehow even though it's the same principle. And never, ever squash a cockroach with your shoe or something. The eggs stick to their legs, so they are squashed onto the surface and will still hatch.

There's indeed no perfect solution if you live in a humid country, but cleanliness and tight-locking food containers (cereal goes into the fridge, too...) will help a lot... or get a lizard. Ideally a gecko.

yudantaiteki wrote:

Irixmark wrote:

And never, ever squash a cockroach with your shoe or something. The eggs stick to their legs, so they are squashed onto the surface and will still hatch.

This is a myth; cockroaches deposit their egg sacs rather than carrying them around, and even if you did crush an egg sac the eggs wouldn't survive.

http://boards.straightdope.com/sdmb/sho … p?t=269811

Yep. Found a cockroach egg case inside my shoe (which was only discovered after putting my shoe on and feeling something in there.) once. Talk about gross! It still gives me the willies to think about it now.

yudantaiteki wrote:

Irixmark wrote:

And never, ever squash a cockroach with your shoe or something. The eggs stick to their legs, so they are squashed onto the surface and will still hatch.

This is a myth; cockroaches deposit their egg sacs rather than carrying them around, and even if you did crush an egg sac the eggs wouldn't survive.

Excellent, thanks. I shall stomp on every cockroach I encounter from now on.