I didn't think the sticky traps were available any more. I recall, some twenty years ago, getting a tin of some evil yellow substance from a friend who worked for rent-o-kill. We spread the stuff onto a sheet of cardboard about 1m x 1m which was then placed in the middle of the kitchen floor. Then put chocolate in the centre of the sheet. The mice must have literally thrown themselves at it. We guessed that they must have been climbing onto the kitchen table and leaping towards the chocolate. Perhaps we were invaded by a family of mice with a particularly sweet tooth, but chocolate as bait was the key to catching them.