The space behind a door is a storage spot that’s often overlooked. Build a set of shallow shelves and mount it to the wall behind your laundry room door. The materials are inexpensive. Measure the distance between the door hinge and the wall and subtract an inch. This is the maximum depth of the shelves. We used 1x4s for the sides, top and shelves. Screw the sides to the top. Then screw three 1×2 hanging strips to the sides: one top and bottom and one centered. Nail metal shelf standards to the sides. Complete the shelves by nailing a 1×2 trim piece to the sides and top. The 1×2 dresses up the shelf unit and keeps the shelves from falling off the shelf clips.
This plan is probably the easiest plan ever added in the list. The one who is working on this project, don’t need any professional skills but just knowing some basics of woodworking will be enough for this DIY. You will get step by step detailed process of this tutorial in the source linked tutorial. This tutorial will surely help you to build this plan quickly.
You can also use Google image search to research a project. Unlike the PDF search, the image search provides a photo of what the project will look like, which is helpful in determining if you want to pursue building it. By doing an image search for how to build a step stool, you will have a ton of options that all lead to woodworking plans of various quality. (The how to part of these is important—otherwise you’ll just get pictures of step stools.) 

This super-strong and simple-to-build workbench is may be the project you've been looking for a long time. You have to select some free workbench plans to create yourself a working table in your shed that after you can use it when you are working on your projects and maybe it can provide you some extra storage, depends upon which plan you are choosing to DIY.