Remember that rodents are nocturnal. They eat just
about anything but especially love peanut butter. Rodents will travel
the same pathways over & over. Those pathways are always along the base
of a wall or similar vertical structures. Traps should always be placed
in the pathways.
Place the traps against the wall where rodents
travel, orienting them so that the short side of the trap with the bait
pedal, is against the wall. Pairs of traps may be employed since mice
will often jump over obstructions in their normal path. Use two traps in
the positioned mentioned above or place then length-wise, end-to-end
(red "V's" on traps pointing towards each other) so that the bait pedal
end will be encountered first as mice approach from either direction.