Terro liquid baits ONLY. The small prefilled plastic ones that you cut one end open are the only ones that have ever worked for us.. Yes a little more expensive than the other ones but far more effective. The first year we lived here, I opened a box of cereal for breakfast and literally poured out a bowl of ants- got the Terro liquid traps and there was a huge difference overnight, all ants were gone in less than a week. Last summer got a huge infestation in the basement, again broke out the Terro and vacuumed up dead ants for a week. I believe the active ingredient is borax, so not horribly toxic to kids or pets (our dogs and cats don't pay any attention to them) I'll never waste my money on those plastic or metal ant buttons with poison in them, they just don't work.