1- Cut the body off of a used detergent bottle, leaving the neck with the cap intact.
2- Make rectangles on the short sides of the cut container to create a cup holder or cutting board.
3- To make a reusable bag, cut off the neck part with the cap from the container and apply it to a pillowcase.
4- Insert the cut neck into the pillowcase and screw on the cap to create the bag.
5- Use the handle from an old container and hot glue it to the top of a sponge to make a whiteboard eraser.
6- Cut a detergent container into two equal parts vertically to make a tool box.