
Energy in Cityville appears to be the bottleneck at the moment, so anything that saves it has to be a "good thing", so here's something I discovered to help complete buildings without wasting it, but requires two accounts (which nearly everyone here I would guess has anyway) with unused daily clicks. This works best if you place all your foundations at once, so the second account can help with 5 buildings at once, as it doesn't work if you try to revisit account 1 after you've already accepted help, and obviously, the higher the number of build stages required, the better value you'll get, eg Piers and Tower Eats take 10 clicks/energy...