fruit flies
our house was recently infested with fruit flies. a violent campaign of smooshing every one wasn't doing the trick. they're breeding too fast. in the shower drain of all places. so now we cover the drains with duct tape. and pour some internet special orange juice down. apparently they love decaying biological material that clogs drains. but bathing in orange juice kills the poor baby fruit flies. anywho, we seem to be winning now.