Let us know what you catch. I have used cheese chunks from a sandwich myself.
Yes, soft cheese has worked for me well too. Semi-solid cheese (like the sandwich cheese) seems great on “attraction” but maybe gets stolen (by the mice!) a little easier than peanut butter?
I’ve never really tried carefully keeping track of what is most “productive”. Lots of variables there. Aldi peanut butter seems to work well and is cheap, but, it also seems like changing baits and types of traps around helps too. Mice probably “learn” from trap “snaps” that miss (esp. the half-grown mice?) I’ve added a little weight to the “trigger pad” of a “Pic” plastic “Jaws” type trap - now it is super sensitive, yet not really harder to set. It’ll be interesting to see if this is “better” for the little ones.
(It does seem like the trigger mechanisms of some of the plastic traps wear out quicker than metal traps, and then they won’t set.)
So far, nothing in that room - but none of the traps in that room, regardless of bait, have caught anything since my post. :-)