just yesterday I was watching my window guy install the windows for my new place and heard him having a conversation with my neighbour who was saying that it took him 3 hours to hang a door himself. My window/door guy said that he liked it when people tried to install themselves because then they could really appreciate what it is that he does. Well I don`t need to install a window myself to appreciate what he does. I just have to watch him check, double check the level, how it opens, how it closes, swings, adjust, readjust to know that if I tried to hang my own windows they would probably stick, leak and be crooked.
I studied furniture design in school, so I can weld, solder, do woodworking, but it`s been ages since I bothered to do any of that on my own properties. I hire trades for the big jobs and my builder/handyman for the small things. Now, I shop, I clean, I paint. Often I will hire painters and I can`t wait for teh day I can hire cleaners, whohoo. Gone are the days of me fixing a toilet in the middle of the night or attempting to do my own drywall.
I agree that it`s very important to know to correct way to do things so that you can spot when someone`s doing it incorrectly, but once you build up a relationship with people that you trust, you don`t need to be there and you can spend your time more productively.
Other`s are right, it will take a few attempts at things to do a good job. So, do you want a poorly laid hardwood floor in a few houses before you master the art of putting down hardwood that you can pay less than $2/sq foot to have installed? If you really want to learn, the best way is to do what I did. I had an arrangement with my builder that I would be his assistant, mostly because at the time I couldn`t afford to hire 2 people. I worked as his assistant tiling, trimming, etc. I learned a lot and it helps because now I know how to do it and what materials are required I can budget time and money. I agree that it`s good to know, but I wouldn`t attempt anything important simply by picking up a book, you need the right tools and it helps to have an experienced person there.