I've just discovered a line of ants merrily marching from the back door to underneath the sofa where there is no doubt a treasure trove of biscuit ends and abandoned raisins. I'll Hoover it when DH gets back and can lift the sofa for me, but is there anything toddler-friendly that i can use to discourage them from coming back, or even to kill them?
We've got DD and dogs so have to be careful about powders etc. We tempted them up onto a surface that DD and the dogs can't reach and put an ant trap out. The ants eat the poison and carry it back to the nest. This was three weeks ago and I've not seen an ant since.