You're not the first person to say this! I'm half inclined to use the Lowes shed as a starting point for my own design. But I do think I'd feel better if I could work as an "aprentice" next to an "old master". Someone at work is going to put me in touch with a guy who builds sheds for a living, and apparently he's competitive with the prices @ Lowes and HD. The Lowes shed comes with a "Handman Package" that I don't want but would end up paying for, anyway. The "workbenches" were laughably flimsy.
First, we need to drill out the holes for the screws that will hold them together. While the two layers of MDF are glued, the countertop and the MDF will only be screwed. The oak countertop, like any natural wood product, will expand and contract with humidity changes. If it were glued to the MDF, the difference in expansion of the two layers would cause the countertop to buckle and curl.
The edges of MDF are fragile, easily crushed or torn. MDF is also notorious for absorbing water through these edges, causing the panels to swell. In Sam Allen's original design, he edged the MDF with 1/4" hardboard. This edging is one of the complexities that Asa Christiana left out in his simplified design. I think this was a mistake. MDF really needs some sort of protection, especially on the edges.

Yea I had a friend who went the HD route and in after putting new braces up for the roof and an extra layer of plywood on the floor he gave up the fight and tore it down. We ended up building twice the shed that was 100 times more sturdy for less than he had invested in the first one. I would go any route that is the opposite way of HD or Lowes. Learn from this guy.
Remove the jaws and route the edges that you could not route while they were still attached. Then use a roundover bit on all of the corners except the inner edge of the inner jaw of the end vise. Give everything a lite sanding, and apply Danish oil to the inner surfaces of the jaws. (By "inner surfaces", I mean those surfaces that will not be accessible when the vises are assembled - the inner surface of the inner jaw, that bolts to the bench, and the outer surfaces of the outer jaws, that bolt to the vise plates.)
Great advice. May I add #11?…if you’re left handed (like me), build a left handed bench. It sounds obvious, but when I made my bench, I had looked at all the pictures in my books, laid out plans for a nice, traditional bench, built it, then realized my front vise should have been on the other end (I have no tail vise). I plane from left to right, and the front vise is always in the way.
The original design had a height of 35-1/8". Their two-layer top was 1-1/2" thick, so their legs were 33-5/8" long. I want a height of 35", but I'm using a top that's 3" thick. My basement floor is anything but level, so I'm using levelers that are adjustable from 3/4" to 1-1/2". In other words, I want legs that are around 31-3/4" long. (If you're not using levelers, your legs need precise lengths. The levelers give about 3/4" of adjustment, so precision is less necessary.
Some tools required for this project are hole saw, drilling machine, pencil, tape measure, clamps, etc. This tutorial explains every step properly with images so that anyone can make a wooden sofa sleeve easily. Those, who prefer a video tutorial, can visit the below link to a YouTube video that illustrates the process of building a DIY Sofa Sleeve Cupholder.
When the holes were complete, I flipped the legs and drilled the countersinks with a 1" Forstner bit. Trying to drill a countersink when the center was already drilled would be impossible with a spade bit or an auger, but Forstner bits are guided by their edges, not their center, so they can handle this job. On thing about Forstners, though -- they have a tendency to skitter around a bit when starting, before they bite. An easy fix for this is to drill a hole through a piece of ply, and to clamp that to your work, creating a jig that will prevent the bit from drilling in the wrong spot.
The course successfully meets the needs of multiple experience levels in a safe, well equipped, spacious, congenial, and educational environment. All instruction and lab experience is under the personal direction of master woodworkers as well as one or two additional experienced woodworkers/teacher assistants who are on hand during all lab hours providing roughly a three-to-one student-to-instructor ratio. Intermediate to more advanced students should not be put off by the fact that beginners are also included in this course.  Check out some of the work done by our alumni in the Alumni Furniture Gallery to get an idea of what our students are capable of.

I agree that even at 12x12, things'll be "cozy" inside. That's OK. Keep in mind that this will be a general purpose hobby shed, not just a wood working shed. Even 12x8 would be plenty big enough for building 1 meter wingspan bungee launched RC gliders. And for the electronics projects I do, I only need enough workbench space to do some soldering with a 3rd hand (for electric guitar pedals). If I need more room than the shed offers for wood working projects, I'll just roll the table saw down a ramp and do my cutting outside in the sun.
The beauty of this project lies in the simplicity. All you need are 3 pieces of wood of your choice (though we must admit natural hardwoods will look incredible), sanding block, clamps, wood glue and finishing product. The hardest step of the whole tutorial is measuring – as always, measure 9 times, cut once! You wouldn’t want to finish your project and then realize it doesn’t have enough space to fit your DVD player, would you?
You can also make one for elders and put it in your garden or terrace or anywhere in the house. Elders can use it to relax and kids can use it to play or sleep. Although this is a really beautiful piece of woodwork, it is not that easy to make. Only someone with good woodworking skill can think of making this swing set. Also, I couldn’t find a good tutorial that illustrates the process of building a wooden boat-shaped swing set. Most Probably, I will write one when I build mine.But if you really want this swing set like right now, I would suggest you hire a good woodworker, who can build something similar. Or just search the internet and maybe you get lucky enough to find a tutorial for this. Good luck either way.

Out of all the shed books I have read, this book stays by my side while I hammer in the yard. The book is well written by what appears to be a non professional book writer (A Good Thing). It reads as if you are getting advise in laymans terms from your neighbor "The Craftsman", a welcome change from the DIY books, that assume a level of expertese. The level of detail is high and discusses gotcha's, advise, and trade "secrets" that could have only come from years of personal experience building sheds.