Help! I have mice
Thank you so much for your help.
You'll see other replies to the contrary, but I, personally, like the old-fangled "snap" traps. There is no poison around for kids and pets to get into. They don't crawl into the walls to die. "Kills" (or near-misses) are easily verified so you know if there's still a problem (hopefully not too many tails!).
Sheet metal is effective at closing holes. Steel wool can be placed in small holes, say in the crawl space; mice don't like it and won't dig through it.
Anyway I'm not totally convinced I'll never have mice again--but getting rid of them is a somewhat long-term proposition. Kind of like woodpeckers--you just try to do enough so that it's easier for them to go to the neighbor's house
Anyway, just start sealing the holes; hopefully you'll have fewer and fewer each year.
As for the traps, these are cheap; I reused them over and over but many people just toss them out when "occupied." (Use peanut butter and set them along the corners where you know they run).
Good luck micebgone!