When building houses, adding walls, etc. What is the most efficient way to do it? I often find myself spending over a minute trying to line up one wall piece perfectly. The only tricks I know are Crt - R and G, but there has to be a better way. Also, some houses are bigger than the walls, do I have to scale the walls up to fit the house? I'm terribly dreadful at this and I'd like to get it done faster.