To get rid of roaches, sprinkle borax powder in back of the stove and fridge, and in the space under the sink. the little buggers walk over it, then rub their sides with their crystal covered feet, abrade holes in themselves, and dehydrate. For fleas, put the borax in your pet's bed, on the carpet, and in the litter box for cats. They go the same way. For ant infestations, spray their path with Pinesol.

I have the big black ones sometimes, and I spray them with fullstrength ammonia. Same for spiders. Lou