Just keep fighting. It's a constant war.

I have 1 dog & 2 cats and only the dog gets the pill each month but I don't have a problem. All are inside pets however the dog does go out.

Sprinkling generous amounts of table salt on carpets really helps. Let sit for a while and vacuum. Worked for me.

I tried the vinegar in the drinking water thing. Then I was told it would (over time) make them sick.

I did put out dishes of soapy water near a night light. Made a big difference. They jump in it.