Because of my son’s disability and my need to teach him just about everything, I have items sorted into bins with handles, labeled with the category (i.e, Sanding, Cutting, Measuring, etc). It’s over-simplified and over-organized, but necessary in our case. One thing nice about it is that we never waste time looking for something; everything has its place.
The frost generated by Canadian winters wreak havoc on structures through their foundations. According to code conventional foundations and footings must rest below the reach of frost on undisturbed soil (in most provinces, this is safely considered to be 4 ft. below ground level or grade), bear directly on bedrock, or be frost-protected. A shallow foundation may be possible in your area in an outbuilding if you can get an engineer to design and stamp plans for insulating the area directly beside your shallow foundation wall so that frost will not form beneath the footing area and cause damage. A slab-on-grade foundation for an outbuilding is another option that will need to be designed by an engineer so that the concrete slab will structurally bear the weight of the shop structure you build above it.
Even if you buy your lumber already planed, you will still encounter many circumstances that require the use of a planer. For example, you might want to build a simple and delicate jewelry box out of small scrap pieces lying around the shop, and you will end up making a small and clunky jewelry box because all of your lumber is 3/4″ thick, and that’s how it is going to stay. That is just the first example. Think about all of the other times that you will pick up a piece of lumber in the shop and it will be the wrong thickness, either just slightly wrong or in an entirely different size category. A planer is a real problem solver and can fix all of that.
As the comic George Carlin might say, a shop is mostly just “a place to put your stuff.” The physical aspect of a shop is indeed simply a space of some kind — a garage, a barn, a teepee — that keeps the rain, rust, and robbers away and houses a collection of implements needed to saw, plane, slice, sand, and pound raw wood into useful objects. But just like the difference between a house and a home, what transforms a building full of tools into a comfortable workshop goes beyond the mere physical aspect.