Just remember, after you do this, those 3 hours are gone from your life forever.

No [censored]? That's true with everything you do. Even if you just sit around for three hours, they're gone, lol.

Lol!

Yeah I don't have the patience to do these grinding methods, to me just smithing up to 100 smithing is grindy enough without going through 3 hours of load screens going in and out of the same building.
What I do is bare with low smithing until I have a lot of money, and then I just purchase a mountain of training off the dawnguard guy, interspersed with playing and doing a little smithing. It's not super quick but seems to be the most pain free way to get to 100 smithing.

My main problem with stuff like this, is when you artificially boost your level you've really hurt yourself. You now have stronger enemies without having the weapon/armour/magic skills to fight them. At least in my opinion anyways, its a single player game so what anyone else does when they play is up to them.