Identify work or a task that you’d like to make easier by using a device or tool. Here are a few possibilities: Easily pick up paperclips or pins that have fallen on the floor.
Make a bed in less time.
Move laundry from a basket into a washing machine without bending down.
Sweep the floor without bending down.
Rinse a collection of dishes at the same time.
Efficiently pass salt and pepper shakers around a table.
Rescue somebody from a high place.

Choose a task from the list or, better yet, come up with your own. Explain how your tool or device will make the task easier. Note the simple machines that the tool or device will use.