When we first moved here we had a lot of cockroaches and I was constantly screaming. We tried many things to get rid of them, the toxic sprays, beer in a bucket that is oiled on the side so they can't get out b/c they are so drunk, eucalyptus oils put around the house in little dishes b/c they hate the smell of Eucalyptus, cedar, rosemary.
We also put coffee grounds in some areas b/c they don't like the smell of that either. We put Boric Acid in the area the roaches liked to go and cleaned like crazy but they still came around, less but still there so we got an exterminator to come and since that it has been better but still saw some roaches so I bought these little white cube things from L S and put them in all the places the roaches like.
When we cleaned everything with bleach and or boric acid and packaged all of our food up that helped too.
Now I see one every once in a while.