Well, darn read every post on here and nothing I haven't tried

We have a HUGE mouse probelm inside and out. We have every year but way worse this winter. During the summer, I have the ratsnakes that move into the garage so that helps. We have a huge cornfield in front of our house so that doesn;t help at all!!
The chicken feed is in a galanized trash can now, and scratch in the fridge in the garage. Thankfully they haven't gotten into my dogs food yet. We have tunnels dug up everywhere in the chicken yards and we've seen/heard the mice running. This year they have moved to the house. The only rooms I haven't found mouse poop is the livingroom, our BR and the room that has all our pet snakes. I'm guessing they haven't been in there b/c wild mice know what snakes are!
I have two indoor cats and 7 house dogs. My oldest cat is almost 9 and we are so excited/shocked that she caught one. When we use to feed live to the snakes at our old house we had some escaped. We thought for sure Bindi had gotten them until we walk in after feeding her to see her sharing her food with a rat and a mouse once.
Thursday, my newest rescue Fergie(8yr old pug) caught one running down the hall. She ate it too before I could get it.
We have snap traps everywhere including the attic and others are safely away from dogs/cats. I have live traps too. The one in the attic had 9 in it Thursday that I dropped trap and all into a bucket of water.
After we 1st noticed the signs of mice, we started searching. They have dug under the walls and are in the walls!!!! We and everyone else in here can hear them and it's driving me insane!! Fergie goes nuts at the walls so I so hope she doesn't start digging holes in my walls!!! I hear one right now under the fridge!!
I would have an outside cat if they weren't so expensive(my work discount sucks!!) to keep around here....FELV/FIV vacc's then the lovely abcess from cat fights. Not to mention my dogs are great with my indoor cats but have been known to kill cats in their yard.