We have tried plenty of home exercise equipment: from exercise bikes and rowing machines to yoga mats and adjustable ...

Your plastic food storage containers are one such example ... One way you can do this is by sorting them with the help of an old CD holder. The narrow notches on the CD holder will hold the lids up ...

Graduate School of Mechanical and Information Engineering, University of Seoul, Seoul 130-743, Korea Department of Mechanical and Information Engineering, University of Seoul, Seoul 130-743, Korea ...