Maximize Torque

Today while I was at home I decided to make some toast. After the toast was ready I decided to apply some jelly to it to enhance the flavor. I first tried to open the jar with most of my arm inside of my shirt because I was cold at the time. I was unable to open the jar because it required more torque then my short arm could provide. Then I realized that if I increased the lever arm distance, a measure from the point where force is applied to the axis of rotation, then I would be able to maximize my torque. After I increased my arm I was able to successfully open the jar of jelly and apply it to my toast. Thank you physics!