I don't generally keep the entire thread in mind when reading and responding to comments.
If I spend a lot of time in an area I learn it and don't need gps to navigate it, however I might use gps just to find specific addresses as I don't usually memorize every street name. I also usually find that Google maps chooses perfectly sensible routes anyway, I don't see much point in trying to second guess it. Oh maybe I can save a minute or two or save a few kilometers by avoiding a highway, honestly who cares? I certainly don't. It will usually offer multiple route alternatives anyway, your ideal route or something close to it is probably among them.
If I spend a lot of time in an area I learn it and don't need gps to navigate it, however I might use gps just to find specific addresses as I don't usually memorize every street name. I also usually find that Google maps chooses perfectly sensible routes anyway, I don't see much point in trying to second guess it. Oh maybe I can save a minute or two or save a few kilometers by avoiding a highway, honestly who cares? I certainly don't. It will usually offer multiple route alternatives anyway, your ideal route or something close to it is probably among them.