>>2824910
Snap traps don’t need more bait than some cotton batting. Set them up like pic related next to each other. It exploits the mouse’s tendency to run along walls. If they hop over the first plate the second gets them.

Also to make it easier for yourself get the plastic clip style traps so you can just open them up and fling the dead mouse into the grass and don’t have to touch mouse guts on the bar. Also less chance for you to smash your fingers.