I've commissioned the construction of a broad axe from a blacksmith, and it will take two weeks to make it. That's a fair bit of time if your character is active (rather than performing tasks that take a long time in game, but only a little time for the player, such as construction or active fishing), and it gets even worse if you need to set the game aside for some time (business trips or other real life obstructions).
It would be useful if longer time tasks could be logged in the quest log and then be removed when completed (rather than cluttering the log with completed tasks). I've lost at least one hide due to forgetting to check the very long dehairing process, and quite a few tanning skins because I forgot they were in process when I pick up the game after saving. Net fishing is another task that may be tricky to remember the timing for.
However, the main aim of this suggestion is for ordered goods that may take quite some time to produce, be it current blacksmithing products or (hopefully) future precious woolen socks and mittens.