mouse control for pet owners

I'm having a terrible time with mice. I've tried snap traps (3 different kinds) with peanut butter, a sticky trap (not as humane, but I'm getting desparate), an electronic zapper, and ultrasonic repellers. Nothing's working. The snap traps & sticky traps have caught nothing. The zapper catches one mouse at a time every couple of days. The ultrasonic repellers that plug into the wall seem to have little effect.

I've enclosed all my food (even thought they're not in the kitchen) and I've put the dog food (their food of choice) in a large plastic cooler. I also don't leave any food out for my dogs when it's not meal time. I did all this about 6 weeks ago-and the mouse population seems to be increasing.

I loathe mice. They are disgusting and dirty. I've seen a couple (2 crawling up the back of my sofa, a coupel scurrying across my utility room floor) and a ton of mouse poop. I even put the traps along the wall where there was a bunch of mouse poo. The traps didn't catch anything. What am I doing wrong? How can I get rid of these vile things?

I've used poison (only inside-never outside for fear of other animal getting into it) in the past when I didn't have dogs and it was highly effective. I have two dogs: a toothless blind poodle and an American cocker. I'm not worried about the poodle, but I fear that the cocker might eat a dead or dying mouse. I read in a newsletter from the cooperative extension agency that anti-coagulant fatal poisoning by dogs eating a contaminated mouse is possible, but not likely. Could I put bait in my crawlspaces/basement without placing my dog at risk? The dog never goes into the basement. Even if he did, he couldn't get into the crawlspaces.

Please help me get rid of the mice.