I hate the smell of dead rotting rodents as much as the next guy, but last year my mouse situation was getting pretty bad. Golfgar and his wife were here visiting and we had a mouse walk right past them!!! They told me about the poison that causes the mise to get really thirsty, but no amount of water will satisfy there thirst. They leave the building looking for water and die off in the woods someplace.
I went to TSC and bought the poison the guy there said does that. Sorry, I don't remember what it's called. And I put it all around my house. It was eaten fairly quickly, but I never saw one dead mouse. I aslo haven't seen a single living mouse since then either!!!!!!!!
My parents are here visiting right now and have put some of there stuff in my storage area. My mom bought some mouse poison from walmart to put in the storage areas just in case. Kind of like using mothballs. You just put it out automatically.
So far, it hasn't been touched.
Poison is the most effective method there is to get rid of a population of unwanted critters. Trapping them just thins the herd, but does nothing to eliminate them.
Good luck,
Eddie