I use shrink/enlarge a lot, especially for trees, bushes etc, to make them smaller usually. That way they're not in the way for gallery snapshots. Too bad off-lot trees can't be removed or shrunk the same way :D
I never use MOO, but I use alt-placement a lot. It will allow me to mostly freely place items closer together (or closer to a wall), but at the same time not place them where they shouldn't be. I've not had any routing issues that way, and not gotten any feedback about any problems either. I also don't place much clutter, which is also a reason people use the cheat.
