One weekend my friends and I went hiking. We stood and sat on the rooftop of a bunker. I had potential energy at the edge of the roof, if the point of reference was the ground many meters below. The height I was at above the ground affected the amount of potential energy I had since PE=mgh. We were super high above ground level, so if somone pushed me, I would have tons of stored energy to do work. I have also been gaining weight from eating chips, so my large weight (mg) would also increase the amount of Joules that would be stored for me to do work. We also had to exert energy (kinetic and chemical) to reach the top of the mountain.