Colored clothespins help employees keep track of which calves have received which treatments. Depending on the calf, a pen might have up to three to four clothespins. The clothespins are spray-painted different colors to correspond with different treatments. Clothespins are initially positioned upright, and then flipped down when a treatment is actually administered. Calves are tethered to the front of the pens to prevent them from reaching the pins at the rear of the pens.

Submitted by Francine Hancock, of Dade City, Fla.