I have been making tomato sauce the same way my entire adult life. I think I picked this up from The Cooking of Italy by Waverly Root. This is one of those recipes that I would never change. After the dish has cooled it thickens and you may just want to eat the sauce with a spoon. It is easy to make, inexpensive, and perfect. It's un-improvable.
It only takes a few minutes to prepare (although it needs to simmer for an hour or so). What more do you need to know?