of borax with regular sugar and sprinkle under the sinks, under stoves and refrigerators. the ants and cockroaches will come and eat and then they will be no more. make sure these places are not accessible to pets. butter can also be used in the same way as the sugar but remember not to let your cat find it.
just mix four tablespoons of borax in 4 cups of hot water. place in a spray bottle and use to clean counters floors and any surface you see fit. it is very inexpensive and effective.
break up the gunk in your drains with one cup of borax and three cups of boiling water. 