Home Depot.com has this Easy Reach by Gorilla Ladders 1-Step Plastic Stool Ladder for only $7.88 plus FREE in-store pick up or free shipping to your home with a $45+ order.
This one-step folding step stool holds up to 300 pounds (and weighs only 2.5 pounds!) and folds so you can easily store it in your kitchen, bathroom, or laundry room.