Darn it, it takes TIME to set up a full world!!

It does take a long time. I have a game save template that I have been working on for nearly a year now. I have changed out every single lot, although many of them are still the same but been upgraded with things such as skylights, and other stuff for the different packs that have been added to the game, as well as every single sim (still working on that one) with their summer and winter outfits.